An architect (Chick Chandler) studies the doors of six shops and an apartment house to solve a gem theft/double murder.

Jonathan Bass (Tom Kennedy), an inventor working for the government, makes the mistake of his life. He moves next door to Shemp. Lazy, obtuse and obnoxious, Shemp plays the good neighbor by wrecking the Bass' garage, car and china... and somehow makes it look to Bass' wife (Christine McIntyre) that Jonathan is clumsily at fault. Bass' latest project is a new bomb for the Army, and it's only a matter of time before helpful Shemp turns up in the laboratory basement offering his assistance.

The Rangers are after Yackey and his gang. Posing as an outlaw, Dave arrives as Panhandle's prisoner and works his way into the gang. Tex arrives and joins Wright's committee. Tex plans a trap for the gang but things go awry when the gang catches Tex and the Committee catches Dave and both are about to be hung.

The stooges are three fish peddlers who decide to cut out the middleman by catching their own fish. They trade their car and $300 for a "new" boat which turns out to be a piece of junk that soon falls apart and sinks in the middle of the ocean. Luckily the boys also have a row boat which they climb into and then try to signal some passing planes for help. Unfortunately, their paint spattered rag is mistaken for a Japanese flag and they are bombed from the sky.