Twenty-five years have passed since the secret murder of Mr. Amazing and Baxter McGill by their creator, the enigmatic Dr. Janus. A mysterious man starts to piece together long-forgotten events, playing a deadly game of cat and mouse and is getting closer to exposing the truth while being followed by his own mysterious shadow.

Meanwhile, Max Tromm, the world's richest man, plans his metamorphosis into a superhuman and grim vision for a new world he plans to rule, with only Agent X (Mr. Amazing's deadly and possibly psychotic replacement) standing in his way.

Janus tells the story of the fight for humanity's future and safety, what it means to be super, what it means to be a hero, and what it means to be human.

Janus is an exciting, fast-paced, transgressive, and funny story that introduces new characters and continues the adventures from the first installment, The Three Lives of Mr. Amazing.