Season Three

Synopsis:  (Episode One/Season Three)

The season opens mere seconds after we last saw Isabelle become a beautiful 20-year-old woman. Richard not only has to deal with this bizarre occurrence, but the discovery that his wife, Lily, has aged decades in a matter of moments and is now 75 years old.

Meanwhile, Tom and Diana deal with a radical 4400 organization calling themselves the Nova Group that has launched attacks against Dennis Ryland and the other bureaucrats involved with the promicin inhibitor scandal.

In a broadcast, the Nova Group promises the world a demonstration of their power on November 17.

In order to expedite the investigation, NTAC brings in Gary Navarro to assist (the telepath last seen in "Voices Carry"). But Tom and Diana soon discover that it is Gary, in fact, who's the mastermind behind the Nova Group.

At the 4400 Center, Isabelle attempts to adjust to being an adult and Richard tries to find a way to save a weakening Lily. Meanwhile, Diana attempts to help her daughter, Maia, who is having trouble controlling her pre-cognitive visions now that she is no longer on the promicin inhibitor.

Tom and Diana apprehend Gary, but he refuses to give any information about October 19. Meanwhile, it's learned that Shawn has been funding the Nova Group for months, unaware of their murderous intent. In an effort to right the wrong, Shawn helps NTAC arrest his contact in the Nova group, but this doesn't bring NTAC any closer to figuring out October 19.

Maia begins attending school at the 4400 Center. Meanwhile, Shawn helps Isabelle deal with the guilt of her mother's impending death. And Richard takes Lily on a trip to the cabin where they used to live for one last moment together. Lily dies peacefully.