After an extremely expensive yacht sinks in the middle of a race, Charlie is put between a rock and a hard place when Don and the NSA need his help on the case.

Several area murders seem to be tied to voter fraud. Don, Charlie, and the team must find the killers before they strike again.

Don and the team must investigate a religious cult after scores of followers are poisoned.

As Larry prepares to embark on his adventure, the team must investigate a string of murders. The case takes an interesting turn when it is discovered that the murders mimic scenes from a movie that hasn't even been released yet.

The team investigates a decommissioned air base after a woman is found dead there, but their investigation is interrupted by paranormal happenings.

The Numbers team tracks a serial killer who targets johns.