When Paw Patrol’s biggest rival, Mayor Humdinger, became the mayor of Adventure City and began to wreak havoc, Ryder and everyone’s favorite hero cub began to face the challenge head-on. As one of the cubs had to face his past in Adventure City, the team found a new ally-the help of the savvy dachshund Liberty. With exciting new gadgets and equipment, the Paw Patrol team fights to save the citizens of Adventure City and prevent Mayor Humdinger from destroying the bustling metropolis.