Nomads - S1.E57

Lord Ibal and his people are attacked by a giant space snake. Space Ghost saves them and finds out that they have been exiled from their homeland. Space Ghost offers to help them join the galaxy alliance. The people are really robots planning to take over the galaxy with their disguised warships. The robots unleash their destroyer robot against Space Ghost. Space Ghost defeats the destroyer robot and then destroys their engines. Space Ghost threatens to throw the lead ship into a black hole unless they surrender. The robots agree and leave the galaxy.