Mousetrap salesmen Stan and Ollie are swindled in Switzerland.
Stan and Ollie tell their wives they're going to a medicinal cruise, but their actual destination becomes clear when the ship they were supposedly on sinks.
Stanley and Oliver are unaware that their long-lost twin brothers, Alfie and Bert, have come to town.
Oliver and Stanley unknowingly raise the daughter of a Gypsy count.
Stan, unaware the war is over, continues patrolling the trenches in France, until Oliver shows up.
The boys flee the bill, the waiter and their girlfriends, just as their wives arrive.