The team traces the Sinatra virus to an organ donor in the Philippines; David blames himself for allowing Owen to try experimental gene therapy to cure his drug addiction.

Bill Lake, Deanna Dizadji, Doug Smith, Geraint Wyn Davies, Ingrid Kavelaars, James Allodi, Jason Spevack, Jee Yun Lee, Jeff Roop, Mark Wilson, Michael Seater, Todd Hofley