When a Los Angeles bus is attacked with sarin gas, the BAU must act quickly to find the suspect before a larger-scale incident occurs.

When a Los Angeles bus is attacked with sarin gas, the BAU must act quickly to find the suspect before a larger-scale incident occurs.

When brides-to-be in Savannah are killed on the eve of their nuptials, the BAU suspects a jilted UnSub is at work.

When three restaurant workers are killed in a robbery/homicide in Las Vegas, N.M., the BAU looks at a cold case that happened in the town six years ago for leads.

When brides-to-be in Savannah are killed on the eve of their nuptials, the BAU suspects a jilted UnSub is at work.

The winner is chosen from the remaining two contestants.

Jarod fills in for a radio talk show host who disappeared after a violent confrontation with a threatening caller; Thomas asks Miss Parker to relocate.