She-Ra: Princess of Power: Season 1, Episode 18

1 - 18: Horde Prime Takes a Holiday

Horde Prime takes a holiday and Hordak decides to use their flagship to take over everything. But Skeletor seems that and decides to steal the ship for himself and use it to rule over Eternia. Needless to say, She-Ra and He-Man mess up both their plans, and the fact that Skeletor and Hordak battle it out amongst themselves just plays against them.