In Ben 10: Alien Force, he is shown to be investigating a secret plot about Highbreeds, but disappeared and it is unknown why. He recorded a message for Ben in the Rust Bucket and claims that he has the Omnitrix with him and it's in good hands. Max has made five appearances in Ben 10: Alien Force as a hologram and one in person. In "Max Out", he used a hand grenade from the Null Void Projector to destroy the Highbreed and DNAliens. It is unknown whether or not he survived the explosion.