A dog helps to recover a million dollars worth of diamonds.

Al is the assistant shipping clerk. He plants himself on top of a mass of crates and fishes valises up with a line attached to a rod and reel. He accidentally catches his boss and the latter runs him ragged before he escapes. Al discovers a crate marked for a Mrs. Wilson - a police dog from Germany. He opens the crate. The hound runs free. Al pursues.

Two pals enlist in the army during World War I. Just before they complete training camp and are to be sent overseas, they're scheduled to marry their girlfriends. However, they get in trouble and wind up in the guardhouse. Their girlfriends are determined to get married, however, and in order to accomplish this, they disguise themselves as soldiers and sneak onto the base, where they unwittingly get mixed up with enemy spies trying to gather information.

Al Alt will get a million dollars if he wears a particular hat for six months. It's a sort of a too-small, soft-felt derby with a very large panache.

"In "Queen of Aces" released through Universal she [Wanda Wiley] appears as an athletic young woman whom her prospective father-in-law characterizes as a he-woman and forbids her to come to a party in his home. Wanda puts on male attire even donning a mustache. Father takes a shine to the "boy" when "he" says the party is too tame and they slip away to a poker party. The place is raided but they make a getaway and there is a general mix- up when the "boy" is seen slipping into a girl's bedroom." - Synopsis via The Moving Picture World

Bert is found making love to the beautiful Queen of the Harem. The romantic moment is interrupted by a dashing Sheik who enters and challenges Bert’s technique, leading to a comedic rivalry. As both men attempt to seize the woman (Bert grabbing her head and the Sheik her feet), she is revealed to be a dummy. The two men hand off the pieces of the dummy to a large slave. Bert then seizes the throne and orders a dancer to perform for him.

As Wanda bicycles down the street, she finds herself at the center of a series of adventures and mishaps involving fire trucks, a construction site, a cop, a policeman, a honky tonk but it all ends happily in the arms of a dreamy engineer.