Four friends are connected by strong male friendship, which does not interfere even their rather old age. In the film "Last Vegas" they decide to celebrate an important event - the wedding of Bill. And although the rest of the trio do not understand how you can lose your head so much from love to get married, they still decide that the bachelor party is literally their sacred duty. And, of course, celebrate it by all means necessary in Vegas. Arriving in this city, they are very surprised, because he has changed incredibly since their last meeting. And this means that vigorous old people are waiting for a lot of savory surprises and other amazing events. Undying youth is what distinguishes faithful comrades who are never bored in life and even more so with each other. Well, the fact that not all of them will be able to survive this incredible bachelor party is fate. And, frankly, not the worst. After all, what could be better for an energetic granddaughter than to get into an extraordinary situation? And so what this situation will end - at their age does not matter at all!