प्लॉट

Tim Avery, an aspiring cartoonist, finds himself in a predicament when his dog stumbles upon the mask of Loki. Then after conceiving an infant son "born of the mask", he discovers just how looney child raising can be.

Tim Avery is a cartoonist who loves his dog Odis. Then one day Odis finds a strange green mask. Then Tim puts it on and has a baby with his wife with the mask on. The baby then gets ahold of powers of the mask. Meanwhile Loki (Alan Cumming) must find the mask before Odin gets mad

Tim Avery (Jamie Kennedy), a cartoonist and family guy, has a tranquil life with his wife Tonya (Traylor Howard), their dog, and their baby boy. Both the dog and the infant use their talents to cause mayhem after the inquisitive dog discovers a mask with magical qualities. As Tim and Tonya attempt to limit the damage, the crafty Norse god Loki (Alan Cumming) arrives in search of the item, causing further disasters that finally bring the deity's strong father, Odin (Bob Hoskins), to bear his vengeance.—Oscar Serpa

A cartoonist named Tim Avery loves his dog, Otis, more than anything in the world. But when Tim and his wife have a baby, Otis starts to feel left out. But then Otis finds an enchanted mask and plots to be rid of the baby once and for all, but is unsuccessful. Meanwhile, up in Valhalla, Odin is infuriated at Loki for losing the mask and orders him to go get it...—Josh f.

Aspiring cartoonist Tim Avery is feeling inadequate about being a father when he finds that his newborn son has some amazing abilities - the baby has the powers of the Mask of Loki, a mythological object that transforms its user into a manic shape-shifter alter-ego. As bad as a baby with godlike powers might seem, the 'really' bad news is that Loki wants his mask back...—austin4577@aol.com

Ten years after the first film, Dr. Arthur Neuman (Ben Stein) is giving a tour of the hall of Norse mythology in Edge City Museum. A man in dark clothes comes in to view the hall. Dr. Neuman reaches the part concerning Loki's imprisonment. Neuman mentions that Loki, the God of Mischief, created the mask and unleashed it on Earth to spread chaos among humankind, and that those who wear it are granted his powers

Dr Neuman narrates that Loki is the youngest son of Norse God Odin. He was constantly up to some mischief or the other, which brought embarrassment to his father and his siblings. He was a bratty little brother. Of all the Norse Gods, Loki is the only one who can shape shift into anything or anyone he wants.

When Dr. Neuman mentions that Odin punished Loki with imprisonment, a stranger becomes very angry and transforms, revealing himself to be Loki (Alan Cumming). The tourists panic and flee, but Dr. Neuman stays to argue with the angry god. Loki takes the mask, but realizes it is a fake. In anger he removes Dr. Neuman's still talking face from his body and puts it on the mask stand, before getting rid of the guards and storming out of the museum in a whirlwind of rage.

In a town called Fringe City, Tim Avery (Jamie Kennedy), an aspiring cartoonist at an animation company, is feeling reluctant to become a father. He has a beautiful wife, Tonya (Traylor Howard), and a best friend, Jorge (Kal Penn), who is very shy around women. Tim has a close relationship with his dog Otis ("Bear"), who finds an ancient mask in a creek and brings it to his owner's house. Tim has been doing his job for 10 years now, but his career is not going anywhere. Jorge encourages Tim to pitch his ideas to the top boss Daniel Moss (Steven Wright). Tim is made to wear a turtle suit and to wander around the workplace entertaining kids, but he wants to be a cartoonist and create his own stories and characters and such.

On a tropical island, Loki is relaxing until Odin orders him to resume the search for the mask, believing it has caused too much chaos for mankind. Loki asks his father for help by telling him where the mask is, as Odin can use his All-Seeing eye to easily find that out. But Odin says that he has to take responsibility for his actions and learn to clean up his own mess.

Tim puts on the real mask for a Halloween party, transforming into a party animal similar to the mask character from the first film. Tim notices Jorge's crush, Sylvia (Victoria Thaine), standing alone in the back. Eagerly confronts her and has her stripped out of her costume and into a skimpy red suit. Sylvia falls into Jorge's arms, which pleases them both. When the company party turns out to be a bore, Tim uses his mask powers to perform a remix of "Can't Take My Eyes Off You", making the party a success, and giving Tim's boss the idea for a new cartoon.

Tim returns to his house and, while still wearing the mask conceives a baby. The baby, when he is born, has the same powers as Loki, which alerts Odin. Loki is trying to find the child born from the mask. His father Odin (Bob Hoskins) possesses a store clerk, and tells Loki that if he finds the child, he will find the mask.

Later, Tonya goes on a business trip, leaving Tim with the baby. Tim, who has been promoted at work, desperately tries to work on his cartoon at home, but is disrupted by baby Alvey. In order to get some peace and quiet, Tim lets Alvey watch TV, which shows Michigan J. Frog. Alvey devilishly obtains the idea to mess with his father's head by using his mask powers. Meanwhile, Otis the dog, who has been feeling neglected by Tim because of Alvey, dons the mask by accident and becomes a crazed animal version of himself, who wishes to get rid of the baby, but all his attempts are overturned by Alvey. Tim starts to notice his son and dog's wild cartoon like behavior, when Alvey starts harassing him.

Eventually, Loki finds the mask-born baby, and confronts Tim for the mask back, and is thwarted again and again by Alvey who uses the power of the Mask.

Odin, possessing Tim's body, finally had enough of Loki, scolds his destructive approach and strips him of his powers. Tim is later fired after failing to impress Moss during a pitch but reconciles and bonds with Alvey. Loki, determined to please his father, sneaks into the Avery household and completes a summoning ritual and appeals to Odin to restore his powers. Odin agrees, but only for a limited time, stating this is his last chance.

Loki kidnaps Alvey in exchange for the mask. Tonya returns home and goes with Tim and Otis, to whom Tim had apologized for his negligence, to make the exchange. Loki, impressed by his powers of the mask and growing fond of him, decides to keep Alvey despite the exchange, forcing the group to chase after them as Tim becomes the Mask once more.

The subsequent confrontation is evenly matched, prompting Loki to halt the fight, suggesting they let Alvey decide who to be with. Although Loki tries to lure Alvey to him with promises of fun, Tim takes off the mask and convinces his son to choose him.

Enraged, Loki tries to kill Tim, but his time runs out and Odin appears in person, again scolding Loki for his failure. Tim, however, feels sympathy for Loki and reminds Odin that regardless of their problems, they are still family. After Tim gives them the mask, Odin reconciles with Loki, and the duo returns home.

Some time later, Tim is rehired when his cartoon, based on Alvey and Otis competing for his attention, becomes a success. After the Avery family watches the cartoon's premiere, Tonya reveals that she is pregnant again.