According to the film’s plot: In Deadpool 3, Wade Wilson/Deadpool is arrested for time crimes involving Cable’s device in Deadpool 2. The TVA returns Cable to his original time and confiscates his time travel technology. Deadpool gets leniency and helps the TVA on a mission. Wanda’s spirit inhabits another Wanda’s body, leading to a new world where Magneto rules and mutants are the majority. Logan hijacks the TVA device to change history and ends up in different Fox worlds. Deadpool enlists Fox’s (X-men) heroes in a fight against Magneto, resulting in chaos and casualties. Wanda is depowered and banished by the TVA, and Deadpool and others are sent to the main MCU timeline. Logan searches for mutants while Deadpool finds Blind Al in his bed.