In 'Chrono Chums: Who's There?', players take on the role of a quirky time-traveling detective, Baxter Blink, who has the unique ability to jump through time with the help of his eccentric old pal, the holographic sidekick, Zed. Players navigate a series of interconnected mystery cases scattered across various historical eras, collecting clues while interacting with famous figures like Shakespeare in Elizabethan England or solving thefts during the Roaring Twenties. With a clever blend of humor, mind-bending puzzles, and quirky dialogue, players must unravel a deeper plot that threatens the fabric of time itself, allowing for endless exploration and revelations about friendships forged across time.