Double Dynamite

Johnny Dalton asks his boss for a raise at the Meek California Fidelity Trust bank. The request is denied, straining his plan to marry Mildred Mibs Goodhue. Mibs remains determined to wed him despite the setback.

Johnny intervenes when he sees a man being beaten in an alley and discovers the victim is a bookie named Harris. Harris rewards him with $1,000 and then turns it into a loan, later multiplying the money with several bets. Johnny ends up with $60,000 while Harris loses much of his stake, triggering suspicion about the source of the funds.

The bank's auditors discover that $75,000 is missing from the till, which raises the danger of a bank robbery scenario. Fearing suspicion, Johnny asks Emile for help hiding the money. Emile agrees to assist, becoming complicit in the plan.

Mildred finds $20,000, the remainder of what Harris owes Johnny, and confronts Pulsifer Jr. with a deal to stay silent. She offers the money in exchange for police inaction, but Pulsifer Jr. calls the authorities anyway. The move escalates the money trail and raises the stakes in the case.

Emile disguises himself as a wealthy benefactor and redeposits the funds into Johnny's bank account, aiming to misdirect investigators. The plan catches the attention of R.B. Pulsifer, the Board head, who insists on meeting the mysterious millionaire. Emile moves to an exclusive hotel to maintain the disguise.

R.B. Pulsifer meets Emile and finds him refreshing; their growing friendship helps to place Johnny in a favorable light with the directors. Emile's performance as a pretend millionaire lends credibility to the funds and buys Johnny more time. This relationship helps steer the case toward Johnny's exoneration.

Mibs insists on driving Johnny to Mexico to escape the investigators, but the couple is intercepted before they can go far. The authorities already know Johnny won the money, not that he robbed the bank, turning their escape into a close call. The attempted getaway heightens the urgency of the situation.

On the way, the police arrest Mibs after auditors trace the $75,000 to her. Johnny is left facing the complicated truth about the windfall and the people around him. The arrest deepens the mystery of who knows what about the funds.

Johnny discovers that Mibs's adding machine is malfunctioning, producing errors like 2+2=5 and 3+3=7. The faulty gadget offers a clue about accounting mistakes and raises questions about what Mibs has told others. The moment complicates the perceived honesty of the gifts and the money.

Mibs tells a man she thinks is a reporter about all the expensive gifts Johnny has given her, only to learn the man works for the IRS. The new interest from the tax authorities adds pressure to resolve the missing funds. The revelation intensifies the scrutiny on both of them.

Johnny's boss, McKissack, is fired for falsely accusing Johnny and Mildred. He ends up taking over Emile's waiter job, altering the balance of the staff at the bank and the Italian restaurant. The shake-up helps clear the air around Johnny and changes the dynamic at play.

The reclusive head of the Board, R.B. Pulsifer, meets with Emile and the pair's friendship helps to clear Johnny in the end. The bank's internal issues are resolved and Johnny's name is exonerated. The film closes on a note of restored trust and reconciliation.