Aired: 1/29/1979
Liz has travelled to the Trig to join Timus in negotiating a peace between the Sorsons and the Thargons.
Aired: 2/5/1979
John and Mike manage to evade the crossfire as the Thargon ship is destroyed. The Sorsons land on Earth where Vishishnu contacts the President about an alliance.
Aired: 2/12/1979
Andrew heads to the White House and manages to rescue Mike and Hsui Tai. On hearing that John is being held by the Federation, the trio decide to steal a Sorson ship to rescue him.
Aired: 2/19/1979
Earth faces danger from two directions: the Thargons and the Sorsons. The Tomorrow People must somehow defeat them both to save the planet.