Date with Destiny.The gang are brought back by Lynch so Lee can see Finnwich, but Lee plans to find his mother first. Meanwhile, Cam and Brandy decrystallize him, but they are caught by a Wurst clone afterwards, and they eventually escape and decide to fight back at the Wurst clones. Back at Coral Grove, the Council Leader reveals he was one of the last of his ancient race of Reptilians, and that the pyramid was to reserve his race. The markings meant great power, and that the Council Leader plans to take over the Earth by creating the most powerful company on Earth, MWF, but Lee's grandfather intervened and learned that his family could be responsible for the success of the invasion, so he hid. Cassandra intervenes with his plans but she and Kimmie are taken to the prison floor by his soldiers. The gang believe that Lynch can't be trusted, so Tina leaves herself behind to guard him. Biffy sees his parents and goes after them. Lee and Jenny find Sue, Lee's mother, but the Council Leader intervenes. Cassandra escapes from the soldiers and releases the Serpent to help her and Kimmie survive. Before the Council Leader can explain more to Lee and after releasing Sue, Cassandra takes over the operations of Coral Grove before she crystallizes the Serpent. During the battle at school, Barrage malfunctions and Brandy is crystallized. Tina arrives back with the rest of the gang with Lynch, and they go see Finnwich. Finnwich plans to kill both Lee and himself because they are too important to this conspiracy. The Council Leader and stops this, and Lee and Tina finally kiss, not before the Council Leader retrieves the key from Lee. Cam stops all the Wurst clones, but blue Tazes arrive and the Red Taz shows up to stop them. Cassandra and Kimmie arrive at the scene and crystallizes the Council Leader and reveals that she plans to open the pyramid so she could sell the Reptilians' technology. However, Kimmie crystallizes Cassandra and Finnwich stops the blue Tazes. Everyone embraces and reconcile now that the conspiracies are over, but leaving the fate of everyone else involved (Cam and Brandy, the school students, the clone teachers, the Serpent and Alfred Ping) unknown. However, in the end, the council member who was presumed dead in Season 3 is seen with even more Reptilians, leading them out of the Pyramid.