Cat gets a blast from the past as she attends her high school reunion, where she uncovers more of her past than she ever anticipated. Meanwhile, Vincent meets up with one of his old military buddies who is hiding a very dangerous secret.

After Vincent's life is endangered, Cat decides they should spend Thanksgiving with her father in order to get information on Vincent's missions. However, when Gabe and Tori join the festivities, true feelings are revealed and secrets are outed. Meanwhile, J.T. and Tess get a surprise while they celebrate Thanksgiving together.