Legends of the Multi-Universe: Salvation Defense

Legends of the Multi-Universe: Salvation Defense (Spoilers)
Thanos and his closely associated ally Amon (Starcraft) are amongst the most dangerous aliens. They would be willing to use everything they have to win and it would mean to recruit three other aliens as threatening and evil as them. They are to find the key cosmic elements the six infinity gems. With it Thanos shall remain unkilled, unchallenged as he holds his grip on the entire multi-universe, he will have her thanks and his name will be the known fear every other life will have to submit or perish in annihilation. There is no other option to living than to serve him.

If the heroes and reformed villains wish to stand a chance against him. They must play keep-away from the alien menaces grubby hands or death will be the most common cycle of life.