The Last Sharknado: It's About Time

Fin Shepard and his adult son Gil time travel to the Cretaceous period in a bid to change the future and undo the destruction of the global sharknado swarm. They destroy a sharknado with the help of a pterodactylus tamed by April, but their next jump leads to medieval Camelot, where they meet Merlin, who reveals he has been helping past Gil research a way to use sharknadoes for time travel. The group's quest takes them through various timelines, including the American Revolutionary War, the Old West, and 1950s beach parties, with each destination threatening to create catastrophic shifts in the timeline. Ultimately, Fin and April succeed in stopping the sharknadoes and repairing time, creating a new universe where all of their friends and family are alive, while Fin plans to retire to Kansas with his pregnant wife and newborn son.