Tom is chasing Jerry as usual, when he knocks him into a wall. The radio then reports that a white mouse had escaped from a laboratory, and it had consumed enough explosives to blow up an entire city. At that same moment, white shoe polish falls off a shell and douses Jerry, thanks to the knock into the wall. Not noticing this, Tom quickly bars all of the doors and windows in order to keep the said white mouse out. After putting together the radio report and the fact that he’s covered in white shoe polish, Jerry decides to pretend that he’s that white mouse and give Tom a good scare. It works, but he’s soon found out, so Tom kicks him out of the house. But at the same time, the real white mouse walks in…
