Neal McDonough and Kelli Williams ("The Practice") return to series television as members of a mobile medical team from the National Institutes of Health who are summoned in a heartbeat to scope out -- and hopefully snuff out -- outbreaks of unexplained and fearful diseases. When people are suffering from a mysterious and deadly illness, which turns them blue, the team must work to put the pieces together to find the source of this potentially deadly epidemic. The series also stars Troy Winbush ("John Q."), Christopher Gorham ("Jake 2.0") and Anna Belknap ("The Handler") as part of the elite team.