or to grade seasons, review, and add to your backlog.
Overview
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
Seasons
Specials
20163 episodes
Season 1
201616 episodes
The Second Signal
20268 episodes
Coming November 30, 2026
Community reviews
No reviews yet
Be the first to review a season.
