Jaylen Barron

In the aftermath of the dam break, massive mudslides wreak havoc throughout Los Angeles; Athena fights to save herself and an agoraphobic woman after her house collapses; a group of pregnant women trapped in a submerged house.

With the help of Special Agent Genny Shaw (guest star Tina Majorino), the Jeffersonian team identifies the remains of a discount shopper and “extreme couponer” who was dragged along the road by an 18-wheeler. Meanwhile, Brennan is adjusting to her first day back at work after giving birth, and Cam disapproves of her daughter’s romance with intern Finn Abernathy (guest star Luke Kleintank).

When Frank shows up uninvited and high to the wedding, he reveals that Sean is still using.

Sean officially moves into the Gallagher house, while Fiona - intent on getting her marriage right this time - sets out to plan a traditional wedding...bachelorette party included.

Worried that his new family will lose their new shelter, Frank plans some goodwill for the neighbourhood.

In an effort to be part of the wedding, Frank offers to pay for the reception, but Sean's concerned that he'll just end up hurting Fiona and confronts him - leading to a brawl.