About this season
Exploring the psychology and past of cold-blooded siblings who have carried out vicious murders.
Episodes (11)
1. Kauffman and McMahan
Aired 3 December 2021 • 44 min
Tragedy strikes rural Iowa as two women are found murdered in their homes. When a local bank is robbed the same day, investigators connect the crimes to an unfolding crime spree and race to find the killer siblings before they can strike again.
2. Kimbles
Aired 10 December 2021 • 44 min
A peaceful town is rocked by the murder of the young wife of a preacher’s son. The investigation leads detectives toward two brothers: one with a deadly ambition, and the other willing to do anything to earn his brother’s love.
3. Engels
Aired 17 December 2021 • 44 min
When the body of a young woman is found in a burnt out station wagon, investigators unravel a deadly plot that leads back to a shattered marriage and two self-made millionaire brothers who feel entitled to do anything to anyone.
4. Merricks
Aired 24 December 2021 • 44 min
A brutal double-homicide in a small Ohio town leads police to a family member with a grudge. Simmering tension over $400 leads two brothers to spiral out of control. Investigators must pit brother against brother to get to the truth of what happened.
5. Allridges
Aired 7 January 2022 • 44 min
6. Galvan-Cernas
Aired 14 January 2022 • 44 min
A home invasion by masked gunmen leads to the murder of a doctor trying to protect his family. When investigators track down three brothers, they discover the kidnapping plot gone wrong was masterminded from within the doctor's own trusted circle.
7. Dennys
Aired 21 January 2022 • 44 min
Within 24 hours, a rural community in Georgia is rocked by two double-homicides, including a beloved dairy farmer and his son. With few suspects, a precious piece of evidence eventually leads detectives to two brothers with a lifelong bond of crime.
8. Homicks And Woodmans
Aired 28 January 2022 • 44 min
When a wealthy businessman and his wife are brutally gunned down, detectives discover a family torn apart by resentment and greed, and uncover a murder plot between the couple's sons and a second set of brothers hired to pull the trigger.
9. Matting & Smith
Aired 4 February 2022 • 44 min
A husband is savagely murdered outside his home in suburban Memphis. Investigators discover multiple extramarital affairs, which leads them to the wife's secret-life, an insurance policy and a brother willing to do anything for his baby sister.
10. Freemans
Aired 11 February 2022 • 44 min
Teen brothers rebel against their strict upbringing and become skinheads, and when their mother, father and younger brother are discovered murdered in their home, police begin a manhunt that leads them across three states.
11. Pratt
Aired 18 February 2022 • 44 min
A home invasion starts a massive manhunt for two bank-robbing brothers through the remote, snowy wilderness of Northern Idaho. The survivalist brothers, who once helped catch a notorious Soviet spy, evade police in a gun battle that ends in murder.