Danny, Monica and FBI Agent Portis review the security measures being taken to protect the Kashmir Sapphire, a priceless gemstone on loan and display at the Montecito.
During a nationally televised poker tournament, Danny and Mike suspect someone is cheating and investigate security footage, despite protests from the show's producer.
Danny and Ed must rely on amateur sex-video footage to help them track down the person who stole diamonds from the Montecito during the taping of a music video.
The auditor's report shows a $2.9 million discrepancy when the Montecito staff applies for the annual license renewal; Danny's former Marine sergeant (Dale Dye) visits the hotel, and the two wind up in a bar fight.
NASCAR driver Jimmie Johnson acts as a celebrity judge at the Montecito's car show; Danny and Mike find, in a bathtub full of ice, a man with a kidney missing.
Danny and Mike divide their time between investigating a string of robberies in the residential suites and posing for a beefcake calendar; Jillian panics when her therapist tells her that her marriage sets a bad example for Delinda.
Ed and Jillian go on a retreat that proves to be anything but peaceful; Danny and Josh deal with a suspicious character who wants to make bets of $1 million per hand.
Ed returns from his Moroccan trip with shocking news about his past; Danny and Delinda's romance heats up; Mike travels to Hawaii to help Sam with her whale problem.
Boston medical examiner Jordan Cavanaugh (Jill Hennessy) and police officer Woody Holt (Jerry O'Connell) come to the Montecito hot on the trail of a murder and a missing rare violin.
Ed and Danny have 12 hours to save Delinda from her kidnappers; Mike and Sam try to figure out whether a Buddhist monk's major winning-streak is a scam.
A blacklisted mobster (Vincent Pastore) purchases the Montecito's million-dollar wedding package, including Wayne Newton, for his daughter, but problems arise because Wayne is on bad terms with Ed.
Everyone reluctantly participates in Ed's Secret Santa gift exchange; Danny's car is stolen on Christmas Eve; Delinda eagerly plans her first Christmas with Danny.
Minutes before a rare wine discovered in the Montecito's cellar is auctioned off for $1 million, Mike realizes it is not genuine; a group of retirees checks into the hotel for a Sudoku tournament.
One of Ed's favorite former employees (Kate Levering) returns with her husband (Judd Nelson) to celebrate her wedding anniversary at the Montecito; Mary and Sam disagree about which guests are most important and fight for OK Go's time.
Ed, Danny and Mike bet on who can find the most waste at the Montecito; Mary must sell the last residential suite and hopes to entice big money with a performance by John Legend.
Ed must seek inner peace because one blow-up could put the Montecito's gaming license at risk; Mike hopes to purchase a condo; a basketball player Sam hosts takes an interest in Mary.