3x18 - Voltron: Defender of the Universe

Princess Romelle is visiting Allura on the day of King Alfor's Eclipse. While his sister is away, Prince Bandor gets a call from the Galaxy Alliance that Queen Merla has been captured by the Muses of Norn, but they will only turn her over to someone of rank. Bandor confronts the Muses, and their leader turns out to be Haggar in disguise. Lotor also arrives, and destroys Bandor's fleet. The Voltron Force flies to the rescue. Lotor tricks them into chasing him into the sun of Norn. He then escapes through a space warp, and leaves them to fight Haggar's latest creation, a Firebird Ro-Beast.