Impulse arrives at the scene of a strange energy signature when stunning interstellar warrior Galactica emerges from the shadows. The fastest man alive, Impulse darts around the room, daring the alien conquerer to catch him. But with a mighty stomp of her boot, the cocky young hero loses his balance and fumbles to the floor. She digs her knee into his chest and chuckles, amused to find that the young of yet another species are so overconfident and easily defeated.