Pete's hidden weakness is revealed in the midst of a prank war with Jill's platoon. While Derrick and Randy work to help their big brother maintain his unit's respect, Cody turns being deskbound into an opportunity to dust off some old solider skills.

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.