Part 1 of 2. The 7th season concludes with a federal bank under attack and hostages being taken, including a BAU team member.
Conclusion. The 7th season ends with the BAU team trying to diffuse a hostage situation involving bank-robbing serial killers. Meanwhile, a marriage takes place and Prentiss contemplates her future.
Chelsea's gorgeous college roommate (Tricia Helfer) comes to live at the house temporarily after a bad breakup, testing Charlie's restraint.
Tricia Helfer returns as Chelsea's college friend, whom Charlie meets again; and Alan has a surprising effect on a patient (Frances Fisher).
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