Review of: Chuck 221 Chuck Versus the Colonel Overall Rating: 10 Sarah and Chuck risk everything to find Chuck's father; Emmett grabs the helm of Buy More. Watch the episode streaming online above. Leave no man behind. A running theme throughout this episode that I enjoyed. The writers did this show justice by flipping the usual situation on it's head. Instead of the military characters being the one upholding the leave no man behind philosophy they have Chuck upholding it and the government agency characters doing the opposite. The whole situation started when Chuck would not leave Orion behind taking Sarah with him as they go AWOL. Then Chuck risks himself and Sarah to save Casey, the very person who is hunting them, so that he was not left behind to fall into Fulcrum's hands. Then Chuck risks himself and Casey to save Sarah from Fulcrum agents so that she is not left behind. What was really fun was watching Casey and Sarah learn from Chucks actions enabling them to become more heroic.