A busy day at the zoo leaves Pop and Sam tuckered out on a bench. As they nap through closing time, the animals come out to play. When Pop's cell phone captures Monkey's interest, he snaps a few pictures with it before dropping it on Giraffe's head. So begins a hilarious chain of events that gets the whole zoo howling, awakens Pop and Sam, and alerts a guard. As Pop and Sam are escorted out, they watch in wonder as Parrot drops the phone into Sam's hands. But the real surprise comes when the phone's photos reveal the monkey business that was afoot while they slept!