In an attempt to honor Lisa's last wishes, Nate finds himself at odds with her family.

George puts his stamp on the Fisher home, settling into domestic routines that irk Arthur.

A group of prank-happy teenagers find their latest joke is no laughing matter. Meanwhile, the Fishers decide to hold a yard sale.

David's ex-fiancee re-enters his life in search of answers to the question, "Why me?"

With Keith away, David gets taken for a ride by a hitchhiker. Meanwhile, Nate goes to a bereavement group.

Fisher and Diaz hosts two very different parties in one night. Meanwhile, David is uncomfortable with all the comfort he's receiving.

Ruth goes on a fossil hunt with George and digs up Sarah and Bettina. Claire focuses her talents on Edie.

Nate and Brenda take Maya on a train ride, getting caught in their tracks when they go a little too far.

Ruth and Bettina take a road trip to Mexico, leaving the men of Fisher and Diaz to some male bonding.

Nate gives Maya "one last look" at a memorial for Lisa, where some surprise discoveries ensue.

Ruth is delighted to meet George's daughter, but worries as his paranoid "views" of the future escalate.