Tom and Diana investigate a supermarket employee who returned from his 18-month odyssey with enhanced strength and reflexes and is using his powers to combat crime in his neighborhood. Elsewhere, the pregnant Lily believes her baby can communicate with her; and Diana, concerned about 8-year-old clairvoyant Maia, invites the girl to live with her.

The public begins to turn on the 4400.

Firebombings threaten the 4400 when their names and addresses are made public.