Doctor Quack is doing an operation, and Daffy is his assistant. Things start out sedately enough, with Daffy asking for quiet in various ways. Then the operation starts, and after handing over instruments at a ever-increasing pace, Daffy loses it and is ejected.

A battleship mostly run by dogs sets sail. The crew threatens to get the mess hall before the captain will, the captain tells them to stop. The people in the ship are informed of a radio message about a reward for capturing a pirate submarine. The crew sets off in planes, leaving Porky behind. When the ship is attacked by the submarine, it's up to Porky to defend the ship.