SWAK

When Tony opens a mysterious letter thinking it's for him, a small puff of white powder comes out and it releases a possible deadly virus. Kate calls for help and soon she and Tony are isolated in a bio-hazard isolation room for precausion. McGee and Gibbs work to discover who sent the envelope and how to cure their friends before its too late for them. Meanwhile, Tony's health gets worse...

Brian Dietzen

Jimmy Palmer

Olivia Burnette

Sarah Lowell

Tamara Taylor

Cassie Yates

Mariette Hartley

Hanna Lowell

Steven Eckholdt

Brad Pitt

Rizwan Manji

Dr. Pandy

Emily Wilson

Young Hanna Lowell (uncredited)

Donald P. Bellisario

Doctor at Bethesda (uncredited)