The Sentinel

Blair and Jim, along with forensics specialist Carolyn Plummer, suspect that a series of seemingly unrelated murders are actually the work of a serial killer.

Jim and Blair are assigned to escort Derek Wilson, a key witness in a local homicide case, on his train ride from Oregon to the courthouse in Cascade. Wilson has essential information that will link his employer to charges of arson and murder.

While guest-lecturing in Blair's anthropology class, Jim saves the entire building from a deadly gas leak only to discover that the leak was designed to distract the campus' attention while a canister of the Ebola virus was being stolen from the hazardous materials lab.

After stopping an armored car heist, Ellison is struck by the high-tech weaponry at the criminals' disposal.

Jim's sentinel abilities detect something strange at the crime scenes of all the recent jewelry robberies but he's unable to figure out exactly what's causing the reaction.

Blair forces Jim to take a vacation at a remote monastery. Initially reluctant, Ellison begins to enjoy the solitude until one of the monks is found dead.