When 4400s around the world come down with life-threatening illnesses, Ryland comes back to NTAC and orders the sick - and even unaffected 4400s - to be quarantined. Tom and Diana race to find a cure and discover a shocking secret in the process.
Quest roles:
Peter Coyote(Dennis Ryland), Jeffrey Combs(Kevin Burkhardt), Richard Kahan(Marco Pacella), Andrew Airlie(Brian Moore), Karina Lombard(Alana Mareva), Garret Dillahunt, Tom Verica, Harris Allan, Keegan Connor Tracy, J. Douglas Stewart, Colleen Winton(Ruth), Valerie Sing Turner(Eden Standish), Christie Wilkes(Rose Woodard), Ken Jones(Matthew Lombard), Peter Benson(Lloyd), Maria Dimou(Reporter)