Mighty Ducks: The Animated Series S1E1

Puckworld is home to a race of hockey-loving humanoid ducks. When the sinister Dragaunus takes over the planet, a band of determined rebels, The Mighty Ducks, manage to chase him from the planet. During the fight, they are caught in a dimensional portal and end up stranded in Anaheim, CA. The Ducks form a hockey team and build a secret base under the Anaheim Pond so they can continue to fight Dragaunus and hopefully find a way home.