Larry, Nick, and Akhmenrah go looking for Cecil (Dick Van Dyke), Reginald (Bill Cobbs), and Gus (Mickey Rooney) to get back the tablet. Going through the lobby, they find all the exhibits battling each other. It takes some doing, but Larry convinces them they have to work together to retrieve the tablet, otherwise all this coming to life at night will end. The civil war mannequins manage to capture Gus, Columbus and the Neanderthals capture Reginald, Jedidiah and Octavian flatten the tires on Cecil's van, but Cecil escapes in a stagecoach. Larry, Nick, Akhmenrah, Atilla, and the T-rex pursue him through Central Park, eventually catching him and retrieving the tablet. While Sacajawea puts Teddy Roosevelt back together with hot wax and the Huns take Cecil back inside the Museum, Akhmenrah activates his tablet and orders everyone back inside. Larry calls Rebecca (Carla Gugino), who arrives at the Museum just in time to see all the exhibits filing back inside and realizes that Larry was telling her the truth. Larry and Akhmenrah do a count to make sure no one is missing, Larry introduces Rebecca to Sacajawea and they go off to talk. Last ones back are Jedidiah and Octavian after crashing in a snowbank with their little car. By the time the sun comes up, everyone and everything is back in their proper places, except for the mess all over the lobby. Just before he turns back into wax, Teddy assures Nick that his father is a great man. The next morning, the TV news reports that Tyrannosaurus rex footprints have been found in the snow leading up to the Museum, that caveman drawings have been found in the subway, and that cavemen were spotted playing with fire. An elaborate hoax maybe? Doctor McPhee (Ricky Gervais) fires Larry but hires him back when he sees the lobby brimming with visitors at opening time. Nick takes Larry to school on Career Day to introduce his dad, the night watchman at the Museum of Natural History, to his class. In the final scene, Larry looks down at the lobby in which all the exhibits are partying together. Larry then flips his flashlight, puts it in his belt, and snaps to turn the light off.