While plutonium is stolen from a nuclear plant, Boone is is having a tough time concentrating. His mind is on Elyse Chapel, a famous musician and old flame.
Navy Seal major Raymond McIntyre kidnaps Da'an and demands to know where his men are. They were involved in a inter-dimensional space flight test that went wrong.
Sandoval's CVI is breaking down. While Dr. Belman tries to remove it before implanting a new one, Sandoval escapes. He wants to rescue his wife DeeDee.
An Irish guide finds the possible burial location of Ma'el, a Taelon that came to Earth 2000 years ago. It is crucial for the Taelons to find his research material.
The Taelon Commonality is invaded and psychic Katya Petrenko is the prime suspect. She tells Boone she knows about his secret activities and needs him.
While a dying colonel implants his brain in a deceased criminal, the Taelons show a new electromagnetic pulse weapon. Jonathan Doors wishes to acquire it.
A new inter-dimensional portal system for human travel turns out to be something more when the resistance discover a CVI in a boy who got lost in the system.
Ne'eg is killed by a bacteria that is deadly to both Taelons and Humans. If it spreads, it might be disastrous. A new racist group attacks a community center.
The Liberation sends a team to destroy the scarecrow probe before the Taelons crack it. Joshua Doors is appointed as secretary of Human-Taelon relations.
An excavation team unleashes a very dangerous Taelon on Earth. Siobhan Beckett comes over to America. She suspects Lili of being a spy and investigates.