The Unit Episode 4.21 Endgame

Bob has developed a Russian contact who tells him that the Russians have sent a group of shooters to take out all the terrorists so their connection to the recent terrorist activity. They follow the shooters who lead them to the first terrorist cell, only to learn the Russians have been taken out, along with several of the terrorists. As they track down the rest of the of the terrorists, Sam uses Molly to contact Jonas in order for the terrorists to eliminate the Unit. Jonas, who has no idea Molly was missing, and the rest of the team, must execute a mission that rescues Molly and flushes out the remaining terrorists. Turns out Sam is in deep cover and assists with Molly's rescue but has to make it seem like he was injured in the process so he can return to the group. When Jonas confronts Tom Ryan about not telling about his wife and Sam being under cover, Tom holds strong, but there's a huge rift between them

Tiffy and Kim complicate Tom Ryan's mission by reporting Molly missing after neither Tom nor Bridget take their concerns seriously.