About this season
A polite and meticulous super sleuth known as the Butt Detective solves a myriad of baffling mysteries, blowing raspberries in the face of crime.
Episodes (123)
1. Episode 1
Aired 3 May 2018 • 20 min
There's a candy thief at large and Butt Detective's on the case with Brown as his backup. But the trail of the culprit leads right into a lake.
2. Episode 2
Aired 4 May 2018 • 20 min
Butt Detective goes to the station, where the officers are looking into who's behind a string of burglaries. But the chief has another job for them.
3. Episode 3
Aired 5 May 2018 • 20 min
After a Kaito the canine crook threatens to steal the Goddess Scarf from the museum, Butt Detective prepares to protect the precious booty.
4. Episode 4
Aired 14 July 2018 • 20 min
The Black Shadow thieves are in town and the police ask Butt Detective for assistance in putting an end to their mischief before any theft occurs.
5. Episode 5
Aired 21 July 2018 • 20 min
Butt Detective, Brown and Chief Maltese must get to the bottom of the Black Shadow Gang's burglaries. Later, they search for the leader's hideout.
6. Episode 6
Aired 28 July 2018 • 20 min
After someone leaves a strange box at the Lucky Cat, the police show up to help only to find they're behind Butt Detective, who's already on the case.
7. Episode 7
Aired 4 August 2018 • 20 min
A conversation at a feline cafe leads Butt Detective to reveal the backstory of how Brown became his assistant, going back to how he learned to talk.
8. Episode 8
Aired 25 August 2018 • 20 min
A potato-loving lady clad in purple knocks on Butt Detective's door and asks him to get to the bottom of a mysterious message from her ancestors.
9. Episode 9
Aired 1 December 2018 • 20 min
The purple potato case continues as Butt Detective, Brown and their purple companion head into the ancestors' hut. But it appears to be empty.
10. Episode 10
Aired 8 December 2018 • 20 min
While hearing about a forest cafe's missing manager, Butt Detective realizes he's been tailed by a persistent koala who may be after Brown's job.
11. Episode 11
Aired 1 December 2018 • 20 min
When the local barbershop owner complains of a spooky ghost scaring his customers, Butt Detective volunteers to get to the bottom of the mystery.
12. Episode 12
Aired 8 December 2018 • 20 min
Butt Detective is asked to protect the Oyagi family treasure from Kaito U, a master of disguise, but he seems to remain one step behind the thief.
13. Episode 13
Aired 15 December 2018 • 20 min
Master burglar Kaito U's stolen the booty from right under Butt Detective's cheeks. But our perceptive hero is not far behind the thief.
14. Episode 14
Aired 5 January 2019 • 20 min
Butt Detective gets a mysterious letter from a faraway jungle, but it's missing a return address on its back. He and Brown head out for an adventure.
15. Episode 15
Aired 12 January 2019 • 20 min
Butt Detective and Brown venture further into the dangerous ruins only to come face-to-face— or rather cheek-to-cheek—with a familiar figure.
16. Episode 16
Aired 19 January 2019 • 20 min
Butt Detective is expecting to be interviewed by Cafe Guide magazine, but the odd interviewer who arrives doesn't quite pass the sniff test.
17. Episode 17
Aired 26 January 2019 • 20 min
Just as Butt Detective is about to go to the police station to learn about a new crime-fighting tool, he receives an urgent call about a stolen item.
18. Episode 18
Aired 2 February 2019 • 20 min
An international crime-fighting organization has discovered Kaito U's hiding place. Before they head in, Butt Detective is brought along as backup.
19. Episode 19
Aired 9 February 2019 • 20 min
Butt Detective and Brown resolve to get to the bottom of rumors about a giant thief. They soon deduce what appears to be its present location.
20. Episode 20
Aired 16 February 2019 • 20 min
While the cops continue their investigation into the giant jewel thief, Butt Detective and Brown are hot on the heels (and cheeks) of the big bandit.
21. Episode 21
Aired 23 February 2019 • 20 min
Brown reports that while Butt Detective was out, someone stole his precious snack. The big-cheeked detective uses the case as a training opportunity.
22. Episode 22
Aired 2 March 2019 • 20 min
Koala-chan asks Butt Detective for help dealing with ghosts seen near a park she likes. Brown insists he's not scared but doesn't seem to want to go.
23. Episode 23
Aired 9 March 2019 • 20 min
Butt Detective, Brown and Koala-chan are trapped behind a locked door in the supposedly-haunted mansion but he soon deduces an alternate egress.
24. Episode 24
Aired 16 March 2019 • 20 min
After getting his cheeks shaved, Butt Detective accepts a job from the police to return a stolen item to its owner. But no one knows who it is.
25. Episode 25
Aired 23 March 2019 • 20 min
Butt Detective investigates a robbery at the Elvis Grizzly museum. The case darkens as the clues lead back to one of the police's own K-9 officers.
26. Episode 26
Aired 30 March 2019 • 20 min
When a missing bag turns back up filled with cash, Butt Detective must reconstruct a series of unintentional exchanges before two lovebirds depart.
27. Episode 27
Aired 6 July 2019 • 20 min
A wealthy banker whose daughter has been kidnapped calls on Butt Detective. The criminal is demanding his famous Rainbow Diamond, but it's missing.
28. Episode 28
Aired 13 July 2019 • 20 min
Butt Detective's search for the Rainbow Diamond is almost at an end. But some wall-writings indicate that actually picking it up might not be so easy.
29. Episode 29
Aired 20 July 2019 • 20 min
Kaito U's back and he's threatening to steal a porcine spa's "greatest treasure." Butt Detective and the K-9s try to deduce what it could be.
30. Episode 30
Aired 27 July 2019 • 20 min
Butt Detective and Brown head to a local festival, where a troublemaker who looks just like the double-cheeked detective has been making mischief.
31. Episode 31
Aired 3 August 2019 • 20 min
Butt Detective uses the cards and coin that his doppelganger left behind to locate him. Meanwhile, Brown helps his new female friend find her ribbon.
32. Episode 32
Aired 10 August 2019 • 20 min
A new investigator claims to be the best and challenges Butt Detective to a public detective match. But our hero senses something amiss.
33. Episode 33
Aired 17 August 2019 • 20 min
There's trouble at the KNK bank and the police ask Butt Detective to take the job. But soon Carrot Horse butts in, complicating the situation.
34. Episode 34
Aired 24 August 2019 • 20 min
Butt Detective receives another request from rich banker Kamenokoji. His daughter Midori is up to something odd and he wants the sleuth to tail her.
35. Episode 35
Aired 31 August 2019 • 20 min
The K-9 cops and a gang of sparrow laborers ask Butt Detective to look into what's behind a series of spooky ghost-sightings at an old clock tower.
36. Episode 36
Aired 7 September 2019 • 20 min
After feline thieves nab a special cane, Butt Detective is on the case. He's joined by his double-cheeked dad, who has a history with the stolen item.
37. Episode 37
Aired 14 September 2019 • 20 min
Brown and his koala pal star in a new detective movie. But behind the scenes, Butt Detective must solve a real case involving some thieving monkeys.
38. Episode 38
Aired 21 September 2019 • 20 min
Butt Detective arrives at Castle Wolf to protect its booty from Kaito U. But he gets the impression there's something not quite right with his host.
39. Episode 39
Aired 28 September 2019 • 20 min
Butt Detective arrives at the treasure only to see it stolen by Kaito U. But then a second Kaito U appears and each claims that the other is a phony.
40. Episode 40
Aired 4 April 2020 • 20 min
Butt Detective and Brown head to a ski slope to investigate rumors of a monstrous yeti, who is behind the resort’s sudden drop in customers.
41. Episode 41
Aired 11 April 2020 • 20 min
Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.
42. Episode 42
Aired 18 April 2020 • 20 min
Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.
43. Episode 43
Aired 25 April 2020 • 20 min
Chief Maltese butts heads with his rival, Chief Chihuahua, at a restaurant. After something goes missing, they compete to see who can solve the case.
44. Episode 44
Aired 2 May 2020 • 20 min
Butt Detective uses tricky tactics to give Brown a lesson in sleuthing. Later, the local kids surprise Brown by giving him a case of his own to solve.
45. Episode 45
Aired 9 May 2020 • 20 min
Butt Detective and Brown receive a mysterious visitor. Once they deduce his identity, he asks them to help stop Kaito U from stealing his treasure.
46. Episode 46
Aired 16 May 2020 • 20 min
Butt Detective and the contestants face their next trial: a giant, menacing snake. Later, Kaito U finally shows himself and tries to steal the veil.
47. Episode 47
Aired 23 May 2020 • 20 min
Kaito U enters the infamously inescapable Orinona Prison and its straight-arrow warden vows to reform him. But Kaito U isn't about to change his ways.
48. Episode 48
Aired 30 May 2020 • 20 min
Kaito U and his crow companion escape from their prison cell, but they're not out of danger yet. Their first stop is the guards' break room.
49. Episode 49
Aired 6 June 2020 • 20 min
While Butt Detective and the canine cops review a string of apple thefts, a journalist bursts in to report his camera was stolen by a spooky culprit.
50. Episode 50
Aired 13 June 2020 • 20 min
After two painful cavities lead Brown and Koala-chan to meet at the dentist's office, a canine detective asks them to find his 11 missing puppies.
51. Episode 51
Aired 20 June 2020 • 20 min
The canine cops reveal a new crime-fighting invention that they're very proud of. But it reminds Brown of the destruction caused by their last one.
52. Episode 52
Aired 27 June 2020 • 20 min
Kaito U is going after the opera house's treasure, so Butt Detective and Brown pay a visit. One of the actors they see on stage is awfully familiar.
53. Episode 53
Aired 3 April 2021 • 20 min
54. Episode 54
Aired 10 April 2021 • 20 min
55. Episode 55
Aired 17 April 2021 • 20 min
56. Episode 56
Aired 24 April 2021 • 20 min
57. Episode 57
Aired 1 May 2021 • 20 min
58. Episode 58
Aired 8 May 2021 • 20 min
59. Episode 59
Aired 15 May 2021 • 20 min
60. Episode 60
Aired 22 May 2021 • 20 min
61. Episode 61
Aired 29 May 2021 • 20 min
62. Episode 62
Aired 5 June 2021 • 20 min
63. Episode 63
Aired 12 June 2021 • 20 min
64. Episode 64
Aired 19 June 2021 • 20 min
65. Episode 65
Aired 26 June 2021 • 20 min
66. Episode 66
Aired 9 April 2022 • 20 min
67. Episode 67
Aired 16 April 2022 • 20 min
68. Episode 68
Aired 23 April 2022 • 20 min
69. Episode 69
Aired 30 April 2022 • 20 min
70. Episode 70
Aired 7 May 2022 • 20 min
71. Episode 71
Aired 14 May 2022 • 20 min
72. Episode 72
Aired 21 May 2022 • 20 min
73. Episode 73
Aired 28 May 2022 • 20 min
74. Episode 74
Aired 4 June 2022 • 20 min
75. Episode 75
Aired 11 June 2022 • 20 min
76. Episode 76
Aired 18 June 2022 • 20 min
77. Episode 77
Aired 25 June 2022 • 20 min
78. Episode 78
Aired 2 July 2022 • 20 min
79. Episode 79
Aired 8 April 2023 • 20 min
80. Episode 80
Aired 15 April 2023 • 20 min
81. Episode 81
Aired 22 April 2023 • 20 min
82. Episode 82
Aired 29 April 2023 • 20 min
83. Episode 83
Aired 6 May 2023 • 20 min
84. Episode 84
Aired 13 May 2023 • 20 min
85. Episode 85
Aired 20 May 2023 • 20 min
86. Episode 86
Aired 27 May 2023 • 20 min
87. Episode 87
Aired 6 April 2024 • 20 min
88. Episode 88
Aired 13 April 2024 • 20 min
89. Episode 89
Aired 20 April 2024 • 20 min
90. Episode 90
Aired 27 April 2024 • 20 min
91. Episode 91
Aired 4 May 2024 • 20 min
92. Episode 92
Aired 11 May 2024 • 20 min
93. Episode 93
Aired 18 May 2024 • 20 min
94. Episode 94
Aired 25 May 2024 • 20 min
95. Episode 95
Aired 1 June 2024 • 20 min
96. Episode 96
Aired 8 June 2024 • 20 min
97. Episode 97
Aired 15 June 2024 • 20 min
98. Episode 98
Aired 22 June 2024 • 20 min
99. Episode 99
Aired 29 June 2024 • 20 min
100. Episode 100
Aired 6 July 2024 • 20 min
101. Episode 101
Aired 13 July 2024 • 20 min
102. Episode 102
Aired 5 October 2024 • 20 min
103. Episode 103
Aired 12 October 2024 • 20 min
104. Episode 104
Aired 19 October 2024 • 20 min
105. Episode 105
Aired 26 October 2024 • 20 min
106. Episode 106
Aired 2 November 2024 • 20 min
107. Episode 107
Aired 9 November 2024 • 20 min
108. Episode 108
Aired 16 November 2024 • 20 min
109. Episode 109
Aired 5 April 2025 • 20 min
110. Episode 110
Aired 12 April 2025 • 20 min
111. Episode 111
Aired 19 April 2025 • 20 min
112. Episode 112
Aired 26 April 2025 • 20 min
113. Episode 113
Aired 3 May 2025 • 20 min
114. Episode 114
Aired 10 May 2025 • 20 min
115. Episode 115
Aired 17 May 2025 • 20 min
116. Episode 116
Aired 24 May 2025 • 20 min
117. Episode 117
Aired 4 October 2025 • 20 min
118. Episode 118
Aired 11 October 2025 • 20 min
119. Episode 119
Aired 18 October 2025 • 20 min
120. Episode 120
Aired 25 October 2025 • 20 min
121. Episode 121
Aired 1 November 2025 • 20 min
122. Episode 122
Aired 8 November 2025 • 20 min
123. Episode 123
Aired 15 November 2025 • 20 min