War of the Fat Italians 2015 commences when Xboxfan is invited over to the castle to play Mario Kart with Mario and SMG4, only to find them fighting again when he arrives.
Oh yeah. It's Luigi time. And Mario and SMG4 are stuck right in the middle of an army of Weegee dolls that turn people into more Weegee dolls when touched. It's up to them figure out what is going on and put a stop to whatever it may be.
When SMG4 keeps getting interrupted while trying to tell a scary story to Mario, Luigi, Bowser, Wario, and Steve, SMG4 tells the others to try to continue telling the story.
Join 2 Swagmaster6969696969 and Chris on weird fun adventures as they attempt to do their jobs as guards of a spaghetti factory: This time they have been suspended and a shady figure, Ivan, says he can help.
Mario goes back in time through different events in SMG4 that happened in 2015, with his intended end destination being the beginning of the year so he can eat a limited-edition pizza he'd been saving.