Danny's friend Greg is found murdered in the desert, reporter is hot on the trail of a naughty senator, and King Arthur is riding through the casino.

Falling in love with a new temporary Montecito employee known only as "Bob the floater" (guest star Christian Kane), Nessa begins pressing her new mystery man for more personal details. However, when she discovers that her new beau is actually suffering from amnesia and walked into the hotel several days again hoping to jar his memory, Nessa turns to Ed in the hopes of uncovering the truth about Bob. Meanwhile, a guest's discovery of a revealing picture of her undressing in a hotel cabana on the internet, sends Danny on the hunt for a peeping camera man whose lens has also captured a revealing side of Delinda. Sam's war of words with a world-champion eater prompts her to enter an eating contest, enlisting Mike as her trainer.

Danny has a busy day coddling an oddball winner, trying to locate a missing high roller, and figuring out a cheater's MO. Big Ed finds his daughter sleeping with Danny.

Danny and Ed uncover a car thief, and Ed's cousin, Donny, meets the woman of his dreams at the roulette wheel and decides to get married immediately. Delinda ends things with Danny and decides to get a job.

Nessa secretly meets with a cheater busted by Ed and Danny. A psychic gives Mary a dire prediction about his next show. Delinda starts work in the kitchen, but isn't there long.

Danny and Ed hunt for a sexual predator targeting hotel guests.

Ed takes a Hawaii vacation leaving Danny in charge. Mike becomes the good luck charm for a gambler on a hot streak.

Mary gets Wayne Newton to help an unlucky couple. A grifter passes counterfeit chips to Delinda. Sam is kept busy by two regulars who bet on anything.

Ed's ex-CIA partner heads security for a diva. A full-comp VIP gives no gaming action. Penn & Teller have a cameo.

A high roller's rowdy daughters become Danny's responsibility. A small-town fiancé is seduced by the tables as Mary organizes a group wedding. Mike is sued by a drunk woman he rescues.

A magician's wife disappears as scheduled, but fails to return. Mike's college buddy is in town. A convention of swizzle-stick collectors requires extra security.

The casino hosts a boxing match. Delinda, Nessa and Mike find a bag of cash. Blue Man Group has a cameo.

Big Ed's former CIA protégé Jack Keller (Alec Baldwin), is now a security consultant supervising the Montecito's switch from analog to digital surveillance. Brooks and Dunn get on a lengthy roll at the crap table. Ed sees red when a comic turns blue.

Sin City screeches to a halt as a massive power outage brings down the light of the strip, locking down the Montecito, while a mysterious hotel guest is shot on the casino floor. In the midst of the blackout, super sleuths Nessa and Delinda attempt to find the casino killer, while a semi-delirious Sam flirts with paranoia as she suspects the murder to be part of an elaborate cover-up. Elsewhere, a trapped Danny and Mary spend the blackout rehashing some old feelings, while a claustrophobic Mike works tirelessly to free Ed and himself from the lockdown surveillance room.

When a suicidal hotel guest (guest star Jon Lovitz) declares his life-ending intentions, Danny and Ed race to stop him from taking a flying leap off of the Montecito. Pleading to save the guest's life with the help of a little Vegas magic, Danny and Ed introduce him to the joys of gambling, but their plans backfire when he hits a major winning streak. Meanwhile, Sam lets herself get a little too close to a client only to have her romantic dreams ruined when his fiancée (guest star Paris Hilton) comes to town and Ed struggles with an over-eager security guard.

With the Montecito playing host to the production crew for the feature film "Die Fast, Die Furious" staring Hollywood action star Jean-Claude Van Damme (as himself), Ed maintains a watchful eye on the film's intense stunts. But when Van Damme soars to his death while attempting to perform the movie's key stunt - a dangerous motorcicle jump - Ed and Danny search for an explanation for the accident. Meanwhile, a new rival casino host (guest star Ian Antony Dale) attempts to square off with Sam in a battle for the biggest whale and a mournful Delinda remembers her fallen, but not forgotten, 24-hour boyfriend.

When a "whale" blows town while owing the Montecito almost $5 million, Ed has 36 hours to find the missing trust-fund baby and force him to make good on the debt. However, when the AWOL gambler turns up at the Montecito's sister resort in New Orleans, Danny, Sam and Ed hop a plane to "The Big Easy" to track their fugitive player. Elsewhere, Mary attempts to control an unruly clan of farmers in town to celebrate their family reunion and recent Powerball jackpot, while Mike takes on the daunting task of coordinating the "World's Largest Wet T-shirt Contest."

When a less then brilliant townie (guest star Sean Astin) hits a big cash jackpot at the Montecito, Danny draws the challenging task of securing the winner and his bag full of cash only to watch Vegas' newest millionaire die for an alleged heart attack. However, when the man's greedy wife turns up to claim his winnings and discovers both the body and the cash are MIA, Danny smells a scam and scours the city for the missing money. Elsewhere, Ed welcomes a special guest - his mother Bette (guest star June Lockhart) - who regales the staff with tails of the fierce president of operations childhood, while Sam attempts to control the king and queen of coupons who are determined to leave Vegas without spending a dime.

An escaped murderer seeks revenge against Sam for testifying against him; the hotel hosts a statewide cheerleading competition; Nessa discusses the merits of Manchester United with a trio of rowdy British soccer fans.

When one of the Montecito's guests wins big, his wallet is snatched before he can indulge in his winnings, forcing Danny , Sam and Ed to search the premises for the thieves. When the wallet is graciously returned, Danny and Sam give the Good Samaritan a priceless reward. Elsewhere, there is a suspicious machine on the floor with an unusually high payout pattern, and it's up to the Montecito's security team to figure out if it's a defective machine or a strategically deceiving guest. Meanwhile, Ed's thoughts are preoccupied with jealousy and suspicion when he finds out that Jillian (Cheryl Ladd) has been hanging out with the artist playing at the Montecito, Marc McGrath (as himself) and an overzealous agent pesters Mary trying to get her talent-less client a gig at the Montecito.

When five million dollars of diamonds is stolen from a Montecito guest, Danny enlists Mike's technical expertise to determine the techniques used by the mysterious thief. However, Mike's involvement sends him off on a detective tangent as he is determined to solve the great jewel caper. Meanwhile, the arrival of one of the hotel's most loyal high rollers and his announcement of his pending marriage shocks Sam, especially since his fiancé utters the tragic phrase that he "will never gamble again". Determined, she works with Delinda and Mary to make this gambler realize that the true love he seeks actually exists with his longtime assistant. Elsewhere, a corporate psychologist visits the staff to get a read on the mental health of Ed's team.

While attempting to comfort a concerned gambler who is demanding his favorite dealer, Nessa discovers the diehard blackjack player has a bomb strapped to his chest. As she causally alerts Ed - who joins the nervous bomber at the table - Nessa attempts to talk him down while Danny discovers the horrifying truth that second bombs has been planted inside the hotel by an accomplice. Elsewhere, Mary and Sam prep the pool for a private concert by rock star Everlast (as himself) for a group of privileged teenagers while Delinda attempts to make her kitchen demonstration a success.

Danny is recalled to the marines, effective in 24 hours. While he is getting his affairs in order, Mary has a visit from her father. Danny and Mary confront him together, and when he tells her that he has two little girls, she decides to tell his wife what he did to his first little girl. The casino is also dealing with counterfeit money, and Mike is at the forefront of solving the crime. There is a going away party for Danny, he asks Ed to be the executor of his will, gives his car keys to Mike and says goodbye to everybody. Finally he leaves and goes to see Mary, they make love and she tells him that she loves him. He then meets Mike and is driven through Las Vegas one last time as he leaves.