After the conclusion of a peace conference between the Federation and the Romulans, the captain of the USS Cherokee decides he is not done communicating with the Romulans. Immediately the crew realizes something is amiss and decide to take action.
Captain Chandler of the USS Constitution struggles with the prime directive when asked to take action to prevent a probable catastrophe caused by Star Fleet. But a pair of time travelers take the decision from his hands.
The Federation's first contact with the Doomsday Machine resulting in the loss of the crew of the USS Constellation save it's captain, Commander Decker.
