At the Museum of Natural History, there's new exhibit being unveiled. Larry Daley who manages the night exhibit because the exhibits come to life because of the Tablet of Ahkmenrah, is in charge of the presentation. But when the exhibits go wild, Larry finds himself in trouble. He learns that the Tablet is corroding so he does some research and learns that Cecil, the former museum guard was at the site when the Tablet was discovered. He tells Larry that they were warned that if they remove it could mean the end. Larry realizes it means the end of magic. He talks to Ahkmenrah who says that he doesn't know anything. Only his father the Pharoah knows the Tablet's secrets. He learns that the Pharoah was sent to the London museum. So he convinces, Dr. McPhee the museum curator to help send him to London. He goes and takes Ahkmenrah with him but some of the others like Teddy Roosevelt, Attila, Octavius, and Jedediah come with him.

Night at the Museum was an original, hilarious, fantastical smash hit - but can Secret of the Tomb compensate for Battle of the Smithsonian's misstep? Night at the Museum can be everything an audience wants from a family film for the whole brood. Secret of the Tomb delivers adequately in the way a third film should, with heart, care and laughter.

Larry the night guard is still living the dream caring for the exhibits, and familiar characters, that come alive at night at the Museum of Natural History, thanks to the Tablet of Ahkmenrah. But magic is a fickle thing, and the Tablet is deteriorating, causing mayhem, havoc and danger to his pals at the museum. Motivated to save his friends, he ventures on a quest to discover more about the Tablet which brings him to the Museum of London as a last ditch effort to restore the Tablet and preserve his waxy, plastic and ancient companions.

With its third and final installment, director Shawn Levy returns to the magic that existed in the original Night at the Museum which ultimately captivated film-goers. As with many sequels, the third installment stays true to the premise of its predecessors and only slightly freshens up the premise with a couple of new characters and a swift change of location. Screenwriters David Guion and Michael Handelman smartly bring back beloved characters from the first film and don't muddy up the premise or story too much with over-complications.

Fans of the franchise will be pleasantly surprised by the heartfelt and sentimental Night at the Museum: Secret of the Tomb. The thoughtfulness and homages to ancient history are present and the jokes have a wide enough range to make any age giggle. Rebel Wilson might be the one drawback for some viewers, as her distinctly loud character is weird and obnoxious and detracts from the sweet film.

Film watchers be warned, you might shed many tears by the end of this film, as this film critic did. The poignancy and relevancy of the film's final scenes are nearly too much as this film touches your soul and makes you nostalgic for the wonder that is Robin Williams.