Lachlan Buchanan

The young rising star of "The Wives of Wall Street" is murdered; Castle tries to give Beckett a Valentine's Day gift, but his plans go awry.

Aria, Emily, Hanna and Spencer are on the quest for answers of what Alison knew before she died and they might have just gotten a big lead when someone from Alison's past appears. Duncan might hold the key to all of the girls' answers, but can they trust him to let down their guard? And just when they feel like Duncan may be the only lead, Jason drops off a bag of Alison's personal items that could be more than just a bag of junk. Meanwhile, Toby's return to Rosewood brings a surprise reunion that ends dangerously.

One father has a guilty conscience, one has a daughter he doesn't trust, one is hiding a secret from his daughter and the other father is missing in action - all in all, it is not the ideal time for Rosewood's annual Father-Daughter Dance. With fathers looking to make amends and daughters trying to keep the peace, the annual dance looks to be anything but fun. Meanwhile, Ashley continues her hunt to find answers about what is going on with Hanna with help from a surprising source.

The BAU welcomes back Emily Prentiss as they are called upon to investigate the disappearance of three women.

The NCIS agents' personal plans are interrupted when each of them catches errors in a seemingly cut-and-dried closed case. Also, McGee and Delilah (Margo Harshman) argue over the importance of not discussing work during dinner, while DiNozzo bores his date with shop talk.