The one weird thing about this episode, though, was the line up of the Guardians. We had Peter Quill, Rocket Racoon, and Groot, all of whom were expected given that they're the core members of the team, but they also added in Quasar and Adam Warlock, which is fine but a little strange given that neither is slated to be in the Guardians' movie next year. Meanwhile, they left out Drax the Destroyer and Gamora, and they're both supposed to be in the movie.
Anyway, all of this is ultimately irrelevant because for whatever reason Marvel Studios has cancelled Earth's Mightiest Heroes in favor of more shows like the new Ultimate Spider-Man cartoon.
Earth's Mightiest Heroes was awesome. Ultimate Spider-Man frankly skews a little young for my taste.