 Captain Dangerfield and Captain Barr are rivals in an upcoming boat race. Barr is excited about his innovative plans for his boat, but his work is proceeding slowly, and he is hampered by his inept assistant. Meanwhile, Dangerfield is plotting to sabotage his rival. Just before the race, Dangerfield even kidnaps Barr s daughter Dolly, and he forces her to come with him during the race.