Two FBI agents are killed during a shootout with bank robbers. The unit is led by Don's former mentor and the team learns that everyone's story doesn't quite match up.
Allison's visions could help prevent a massive bio-terror attack when samples of a deadly viral disease go missing. Also, Scanlon is ready to propose to Lynn, but Bridgette's dreams could foreshadow problems on the horizon.
The NCIS team uncovers evidence that determines who shot Callen six months ago and why.
