In the sequel to “Smells Like time Travel,” it’s been two years since Chris returned from the 1980s back to the 2010s. He tried to come to terms with having failed to save his mom and his best friend. But when he finds a message on the answering machine in his old safe house from a mysterious woman that’s been waiting for him for over two decades, Chris shimmers back to the 1990s to learn there’s more a stake.