Ep 8. Crossover / Hall of Egress

Adventure Time season 9 episode 8, "Crossover/Hall of Egress", follows Finn and Jake as they find themselves stuck in a strange new dimension after an unexpected accident. As they navigate through this bizarre alternate world, they encounter a variety of familiar characters from different universes and must work together to find a way back home.

Meanwhile, Princess Bubblegum enlists the help of Marceline and BMO to solve a mystery involving the disappearance of some important artifacts from the Hall of Egress. With the help of Bubblegum's scientific expertise and Marceline's supernatural abilities, they set out to uncover the truth behind the missing items and restore order to the Enchiridion's sacred chamber.

As the two storylines intertwine, Finn and Jake discover a shocking truth about the true nature of their reality and must fight to protect their home and loved ones from a looming threat. With epic battles, emotional character arcs, and plenty of laughs along the way, "Crossover/Hall of Egress" is a standout episode of Adventure Time that will leave fans on the edge of their seats.