In 'Chrono Chums: Who's There?', players take on the role of Max, an unassuming librarian who stumbles upon a mysterious time-traveling device hidden within the pages of an ancient book. As Max accidentally activates the device, he is thrown into a whirlwind of adventures across different eras, where he must rally a quirky cast of historical figures—his 'chrono chums'—to solve bizarre problems and thwart an enigmatic time-bandit who seeks to rewrite history. With clever dialogue choices, unexpected alliances, and humorous anachronisms, players must navigate through comical misunderstandings while piecing together a plot that spans from the age of dinosaurs to the far future.