An electric shock enables Sach to predict numbers, so the Bowery Boys are off to Las Vegas to win enough money at the roulette wheels to let their landlady buy an apartment building. Witnessing his winning streak, some gangsters decide to move in and find out his "system" for beating the odds.

Sach and the gang baby-sit a bratty TV star.

Slip and the gang stray from newspaper work to detective work.

Private detective Johnny Fletcher and his sidekick Sam Cragg skip out on their rented room, but when they sneak back to retrieve their luggage, they discover a dead body on the bed, holding a gold coin in its hand. Fletcher is told by a coin collector that the piece is an old and valuable Spanish coin, but Fletcher soon begins to suspect that the man is himself involved in the murder. Fletcher's investigation leads to he and Sam getting caught up in a murder and gold smuggling scheme.

Slip, Sach, Bobby, Whitey and Chuck unsuccessfully try to sell a dilapidated car to a street cleaner for a fabulous amount, so they can get enough money to save Louie's Malt Shop. Sidewalk photographer Cathy Smith snaps a pictures of three bank robbers as they are fleeing a robbery but when the Bowery Boys and Cathy realize that Sach is also in the photograph, they break into the photo lab to destroy the negative, which might make the police think Sach was involved in the robbery.

A chorus girl's career is ruined and her brother is driven to suicide when she starts smoking marijuana.

A group of delinquents on their way to summer camp get stuck in a haunted house.