Tonton Streaming The Avengers: United They Stand (1999) S1E3 - Kang

After being accidentally freed by Dr. Chris Johnson and Falcon's nephew Andrew, Kang the Conqueror starts to create havoc while looking for a special crystal obelisk from ancient Egypt. This object would allow him to go back into the future and oppress millions of people. The Avengers must protect the world past, present and future, at all costs.