Watch The Signal

Forced to evade a powerful enemy, Sven puts his faith in Charlie as they try to solve the final piece of Paula's puzzle.

Sven faces new threats and makes unexpected allies in his search for the truth. Paula deals with a traitor during a critical phase of her mission.

In space, Paula starts to question herself as the weight of her discovery sinks in. Sven and Charlie deal with the fallout of the accident.

Astronaut Paula is on her way back from a mission. Her husband Sven and daughter Charlie are excited to see her when they receive upsetting news.