Dragon Ball Z - episode 40 - 13 Mar, 1990

Gohan and the others are captured by a band of space pirates, who think they are the lackies of a villain named Frieza, who sent some of his forces to take over their planet long ago. Suddenly, the station heads into an asteroid field, and Bulma runs toward the cockpit. She pushes the pilot out of the way, and guides the ship out of the asteroids safely. After realizing that they're not enemies, the pirates let Gohan, Krillin, and Bulma go. (Source: Wikipedia)