Staff Sergeant Pete Hill is sent home from Afghanistan for assaulting a superior and is forced to return to the US. Upon his return, he is made the platoon sergeant of a group of misfits at Florida-based Fort McGee that includes his two younger brothers, Derrick and Randy. Pete's sergeant major, Command Sergeant Major Cody, gives his platoon the task of finding a lost dog that belongs to the family of a deployed soldier. Pete's platoon is moments away from winning a war games exercise against a group of Italian troops when the dog is spotted in the battlefield, causing Pete to choose between winning the war games or rescuing the dog.

Randy and Pete partake in Sgt. Major Cody's Army Ranger trials, reigniting their intense competition over everything. Things take a turn when Jill joins the trial and both brothers think they're in love with her. Meanwhile, Derrick feels emasculated by Erin's ex, and enlists the platoon to make him seem more capable of manly tasks than he really is