Jason and Vanessa have returned with a case that will test their faith and their partnership.
The homeless of San Antonio are dying, but apparently from natural causes. Captain Patton is ordered to make sure these cases are not homicide, so he gets with Lieutenant Banks, and requests her best detectives.
Jason will end up doing something that tests his wife's strength while Vanessa will have to pass a test of her own.
Who will survive and who won't?
And who will get a dose of Lethal Injection?