After they deliver the tiger back to Tyson, they notice that Doug was still with them when looking over security footage. Back in the Mercedes they are thinking what to do next when Mr Chow's SUV slams into them - and Chow demands his $80k back in exchange for Doug.
They can't find Alan's satchel in the suite, so Alan takes out his blackjack book and they hit the tables. Alan is like a blackjack savant and they win enough to pay back the debt.
They meet Chow out in the desert and make the exchange - but Chow is holding the wrong Doug --- the dodgy drug dealer who sold the wrong gear to Alan before that caused their major hangover. Phil phones Tracy to tell her that they won't make it until Stu has a revelation and snatches the phone.
They race back to Caesars Palace and sure enough Doug is on the roof, badly sunburnt, after they played a prank on him but forgot all about it.
Stu says his goodbyes to Jade, but arranges a date for next week. They get into the Mercedes to get Doug to his wedding. On the way they grab their tuxedos from a drive-by van - and Doug reveals that he found the $80k in chips in his pocket.
Doug makes it to the ceremony and apologies to his bride. Phil is now happy to be with his wife and son all of a sudden, and Stu summons the courage to end it with his crazy and demanding girlfriend. Alan then tries his luck with her but doesn't get far.
After the party the men meet up and Alan reveals a camera that shows highlights of their night. They agree to look at the photos once and then destroy the evidence.
The closing credits shows the highlights of their night, all to Flo Rida, with: Strippers, Tyson's house, the stolen cop car and a shotgun they found, Alan swimming around a fountain, the Vegas wedding, Stu's dentistry skills and more!