India, June 27 -- Prime Video's Reacher is officially in production for its much-anticipated fourth season. According to a Deadline report, the action-thriller has undergone a major change in its casting lineup, with Christopher Rodriguez-Marquette stepping in to replace Jay Baruchel, who exited the series due to a personal matter.

Production on Reacher Season 4 began earlier this month. The new chapter is based on Lee Child's 13th Jack Reacher novel, Gone Tomorrow, and follows Jack Reacher as he becomes entangled in a dangerous conspiracy after a deadly train encounter. The series continues to star Alan Ritchson as the title character, a nomadic ex-military police officer.

Christopher Rodriguez-Marquette will now play Jacob Merrick, a ...