Signal

In the series "Signal," two detectives from different timelines join forces to solve a series of cold cases using a mysterious walkie-talkie that allows them to communicate across time. As they work together, they begin to uncover unexpected connections between their cases and the dark secrets from their pasts. But as they alter events in the past, they start to realize that their actions have unintended consequences on their present and future. With each case they solve, they risk changing the course of their lives forever. Will they be able to find justice without sacrificing everything they hold dear?

Signal is currently unavailable to stream in undefined on the streaming services we have in our catalogue

Some TV shows that have similar genres and were produced around the same time as Signal include I, Jack Wright, Evil, The Blacklist, Poker Face, True Detective, High Potential.