The Hulks finally return to Earth only to discover that they're centuries too late as the High Evolutionary devolved all humans into primitive beasts. He devolves the Hulks too, but Skaar is unaffected and steps up to save the team and all of mankind.
Hulk has long fought alone to protect a world that sees him as a monster, but his friend Rick Jones has taken it upon himself to film the world-saving exploits of Big Green and his team to change that image.
In this never before seen team up of Hulk, his cousin She-Hulk, A-Bomb, Red Hulk and Skaar, Marvel's mightiest super heroes form an eccentric family living under one roof, working together to tackle threats that are too enormous for other heroes to handle. From trying to house break their giant red pet T-Rex to stopping Ego the Living Planet from crashing into the Earth, the Agents of S.M.A.S.H. must learn to balance Hulk-sized action with everyday family-sized problems.