to add an element of The X-Files to the series. Berman decided that the full story of the war would be revealed over the course of several years. At the start of the second season, Braga said that the Temporal Cold War storyline would continue to be included if viewers were still interested, but later described it as "strangulating". Initially featured in the pilot episode, "Broken Bow", it featured the Suliban being manipulated by an unknown humanoid figure from the future, nicknamed "Future Guy" by viewers—a moniker later adopted by the series's writers. At the start of the series, Braga said that they did not have a plan for who the character would turn out to be. Ten years after the end of the series, Braga stated that Future Guy was Archer manipulating his own timeline; he and Berman had previously stated that the character was intended to be a Romulan. Crewman Daniels (Matt Winston), introduced in the episode "Cold Front", was revealed as an operative from 900 years in the future who was fighting against the forces which included the Suliban. Archer found that he was being manipulated by those forces, as Enterprise was blamed for the destruction of a mining colony in "Shockwave". In the third season, an escalation of the Temporal Cold War introduced the Xindi and dealt with the repercussions of their attack on Earth. Daniels explained Archer's importance in history during a trip to the future in "Azati Prime" to witness the final battle against the Sphere Builders—aliens who were also manipulating the Xindi into attacking Earth during Archer's time period. In the closing phase of the Temporal Cold War, Daniels sent the Enterprise back to the 1940s, following a temporal incursion by aliens who had altered the outcome of World War II, permitting Nazi Germany to invade the United States. Once Vosk, the leader of the aliens, was killed, the timeline corrected itself. Vosk's actions had turned the Cold War into an actual war raging through time, but the Enterprise killed Vosk before he could initiate the wars and all of the damage done throughout history was undone. Afterwards, Daniels believed that the Temporal Cold War was finally coming to an end as a result. In Star Trek: Discovery Season 3, it is mentioned that after the Temporal Wars all time travel was outlawed and all existing time travel devices were destroyed. The Guardian