Fan Casting Portals

In this remake of a story, I put on here a couple months ago we see a 15-year-old boy named Cole Hunter get trapped in another universe and is told he is the chosen one that has to save universe #2909 from a spirit that needs the energy of this universe to bring back to his boss a mysterious man in a hood called the Darkest. Halfway through the movie Cole gets back to his universe but eventually realizes that he needs to stop the Spirit. The movie ends with Cole and his friends Ava Rose and Conner Martino getting to back to universe #2909 with an object called a portal seed which is a seed that when thrown down opens a portal to any universe you think of. Once there they go against the Spirit who has taken the form of a tree made of a substance called Darkness that can corrupt anyone or anything it touches. Cole and a man named Crum who lives in that universe eventually stop the tree and send the Spirit through a portal. Cole and his friends get back to their universe now as protectors of the multiverse who use portal seeds to stop any threats. In the post credits we see 6 years later a 21-year-old Cole taking up a job as a forensic scientist alongside a mysterious man named Oliver Sean.