Reacher is an American action crime television series developed by Nick Santora for Amazon Prime Video. Based on the Jack Reacher book series by Lee Child, it stars Alan Ritchson as the title character, a self-proclaimed hobo and former U.S. Army military policeman with formidable strength, intellect, and abilities. During his travels, Reacher crosses paths with dangerous criminals and is forced to do battle.

The first season of Reacher was based on Killing Floor, Child’s 1997 debut novel, and was released on February 4, 2022. The second season, based on Bad Luck and Trouble (2007), began on December 15, 2023, and concluded on January 19, 2024. In early December 2023, the series star, Alan Ritchson, revealed that filming of a third season had begun, based on the 2003 novel Persuader.Jack Reacher is a former U.S. Army military police major with extensive AWOL investigative and combat experience who prefers to live as a drifter, traveling from town to town across the United States.

In season 1, while visiting the (fictional) rural town of Margrave, Georgia, Reacher is arrested for murder. After he is freed, he teams up with two honest police officers, Oscar Finlay and Roscoe Conklin, to investigate a local conspiracy involving corrupt lawmen, politicians, and a wealthy business tycoon and his son.