The Hill brothers commemorate the first anniversary of Pete almost dying in Afghanistan with an "Alive Day" celebration; and the platoon hold a ball in Major Cody's honor.
Pete and Randy reignite their intense rivalry—and end up competing for Jill's affections—when they take part in Cody's Army Ranger trials. Meanwhile, Derrick tries to act more macho after meeting Erin's manly ex.
Cody pushes Pete to maintain insanely high standards among the Rear D in anticipation of a general's visit; at the same time, Randy ends up winning Jill's respect when the two are paired together.
The members of Pete's platoon are tricked into being crash-test dummies for 2nd Lt. Tyson Schneeberger's experimental automobile; at the same time, Derrick is assigned what turns out to be the difficult task of taking Sgt. Maj. Cody's portrait.
The soldiers get a day off to go to the beach, however Pete, Derrick & Randy get stuck looking after War Veterans. The brothers find maybe the older versions of themselves have something to teach them.
Pete is confronted by a girlfriend with whom he never broke up, before deploying to Afghanistan, and Jill must help him through the split. Meanwhile, Derrick and Randy test their “dating skills” without each other as wingmen and come to some startling revelations.
Derrick needs help with matters of the heart and Randy comes to the rescue.
Pete's efforts to distance himself from his brothers and the Platoon back fires.
Derrick tries to help Randy pass his test.
Pete must balance being a brother and a leader.