They Go Boom! (1929)

Stan and Ollie join the French Foreign Legion after Ollie's sweetheart rejects him.

Stan and Ollie are on their way to Atlantic City with their wives, when Ollie gets a phone call from a lodge buddy telling him that a stag party is taking place that night in their honor. Ollie pretends to be sick and sends the wives on ahead, promising that he and Stan will meet them in the morning. The pair dress in their lodge gear, but their wives return having missed their train. With no obvious escape route, Stan and Ollie take to a bed in fear and in response to Stan's plea of "What'll I do?", Ollie replies "Be big!".

Although they are successful fishmongers, Stan convinces Ollie that they should become fishermen too, but making a boat seaworthy isn't an easy task.

Down and out Stan and Ollie beg for food from a friendly old lady who provides them with sandwiches. While eating, they overhear the lady's landlord tell her he's going to throw her out because she can't pay her mortgage. They don't realize that the old lady is really rehearsing for a play. Stan and Ollie decide to help the old lady by selling their car. During the auction a drunk puts a wallet in Stan's pocket. Ollie accuses Stan of robbing the old lady, but when the truth is revealed Stan takes revenge on Ollie.

Stan and Ollie arrive as new inmates at a prison after apparently taking part in a hold-up raid, a raid they tell a prison officer they were only watching. The usual mayhem ensues.

Oliver's in trouble with his wife after missing a payment on their furniture, having given the money to Stanley, who used it instead to pay Mrs. Hardy for his room and board. At Stan's suggestion Ollie then withdraws the couple's savings from the bank to pay for the furniture and inadvertently pays virtually the whole amount at an auction for a grandfather clock which is soon crushed under a passing truck. Mrs Hardy then unintentionally causes serious injuries to Ollie requiring him to be rushed to hospital for a blood transfusion. The doctor conscripts Stan to be the unwilling blood donor. Problems occur with the transfusion and when Stan and Ollie leave the hospital they appear to have morphed into each other.

Stan and Ollie check into a seedy hotel and help a young girl escape the clutches of the landlord. They are forced to flee the hotel with no money and Ollie arranges for Stan to fight at a local boxing hall for $50. Stan's opponent turns out to be Musgy who uses a loaded glove. During the fight the glove is swapped and Stan triumphs only to find that Ollie has bet their fee that he would lose.

Stan and Ollie play door-to-door Christmas tree salesmen in California. They end up getting into an escalating feud with grumpy would-be customer James Finlayson, with his home and their car being destroyed in the melee.

Donald has to get up early, but everything seems to be working to keep him awake. His loudly ticking alarm clock resists several attempts to quiet it. Donald ultimately swallows it; the glow-in-the-dark dial can be seen through his feathers. Then his folding bed folds up on him. Springs start popping out of it; Donald builds an elaborate framework to hold it down. Finally, enough of the clock reassembles itself to sound the alarm and night is over.

Laurel and Hardy try to entertain a female neighbor, unbeknown to Hardy’s wife.