While chasing a modern-day pirate, Blackjack, Batman and Robin are marooned in the Sargasso Sea. There they discover others who have been trapped for centuries by the seaweed and its strange age-defying gas, and with the help of these men they destroy Blackjack's weapons and escape in a repaired Batplane.; Batman and Robin foil Hijack and his gang, who have been robbing trucks of Carter trucking, including one containing platinum.; Dick Grayson goes to sleep while Bruce is out on a date with Kathy, and dreams of the loss of their secret identities caused by Bruce's and Kathy's marriage.; A prisoner is attempting an escape but Warden Willis, knowing the prisoner was a vaudeville actor, traps him in a spotlight.