Uchuu Sentai Kyuranger Episode 3

On the desert planet of Needle, a danger of explosion has been identified due to Jark Matter sucking up the planet's "Planesium" energy. To prevent the explosion, the Spaceship Moraimarz that's sucking up the Planesium must be destroyed. Lucky and the others go down to Planet Needle to fight against Jark Matter. There, a man with a Kyutama named Stinger appears, and transforms into Sasori Orange. Champ sees Stinger's appearance, says something about "avenging the Doctor" and rushes in, shaking off the other Kyurangers trying to restrain him. It seems Stinger and Champ have a past together. (Source: powerrangers.fandom)