Batgirl is annoyed when her friends, Wonder Woman, Supergirl, Zatanna, Green Lantern (Jessica Cruz), and Bumblebee, face the villain Mr.
Star Sapphire returns to Metropolis High for revenge against Hal Jordan during the homecoming football game, with Lois Lane and Jimmy Olsen caught in the crossfire.
The night culminates in a poker game against the Royal Flush Gang, from which Antiope and the girls flee in a stolen car to avoid being arrested by the police.
As Diana berates Antiope for wasting the girls' entire night of study time, a reptilian creature called the Kraken surfaces and begins to attack Metropolis.
Since Antiope forgot to change the lock on the Kraken's undersea cage and thus let it escape, Diana commands her to put it back in, taking pride in the sense of responsibility she learned from Hippolyta.