Avengers/Guardians of the galaxy crossover

This is a crossover episode between the avengers and guardians of the galaxy.

Plot
When Red skull and Shredder team up to recieve a crystal from dimension x, the guardians and avengers team up to take them down.

Trivia

 * At the end of the episode, it is revealed to have a second crossover with teen titans, avengers and TMNT.
 * Surprisingly, even though Wonder Woman is on the cover of the poster, she is not scripted to be in the crossover.