Max Beyond.

Max, a young boy, is held captive in a research facility, who uses his ability to create spacetime rifts between parallel universes, searching for the one in which his brother Leon, a former-marine, manages to rescue him. With attempt after attempt ending in Leon’s death, the strain starts to take its toll on both brothers. When Max discovers his captors are using his power against him, he realizes he must stop focusing on how the story ends and rewrite it from the beginning.