Nate and Cory are good friends and co-workers, but Nate wishes there was more to it. On a blistering hot Sunday, as the two are 'keeping hydrated' with plenty of beer, Nate hears the words: "...Heat. Seeking. Missile." Nate daydreams that's what Cory's hiding in those shorts often enough. As he tries to cool down Nate's imagination keeps heating up. Is it wishful thinking or does Cory really have Nate in his sights?

Cory and Nate from A Heat.Seeking.Missile are back. Cory suggests that he and Nate join their local Friends of the Zoo, and they get invited to an exclusive black-tie evening at the zoo. Nate finds Cory in a tux to be irresistible and during the event, they both end up giving in to their own animal instincts.