The USS Tokyo is escorted back to Earth after the events at the Romulan Alvatar Colony. Captain Aisaka is put on trial, suspected for the attack on the colony. The away team on The Prowler gather intelligence from the alien ship, now known as 'The Elachi'. Can they gat the evidence of Tal Shiar involvement back to Earth before its too late for Taiga? How can they prove that the crew of the Tokyo are innocent?