Pidge's Home Planet Voltron: Defender of the Universe : Season 1 Episode 20

Pidge's home planet of Balto is being barraged with nuclear missiles as Coran and Nanny are putting the pressure on Allura to get married. The Voltron Force (minus Allura) goes to Balto despite Coran's attempts to place them under house arrest in a last desperate attempt to save the planet.