Eight very different couples deal with their love lives in various loosely interrelated tales all set during a frantic month before Christmas in London.

London bookstore owner William Thacker's quiet life turns upside down when a chance encounter with famous actress Anna Scott sparks an unlikely romance challenged by their vastly different worlds.

In Prohibition-era Chicago, musicians Joe and Jerry witness a mob hit, and flee the state in an all-female band disguised as Josephine and Daphne, but further complications set in.

When ambitious reporter Allie Rusch is recruited by vindictive music manager Vivian Cartwright to play cupid to famous pop musicians Caleb Greene and Carson Peet in return for an exclusive story over Valentine's weekend, Allie soon realizes Caleb has his sights set on her. Now, torn between her big career move and her growing feelings for Caleb, Allie is left to question whether she can coerce Caleb into something his heart does not desire, or if she should fall in love and make him her very own Valentine.

Firefighters battle a raging blaze that threatens a vast landscape.

With the discovery of an incoming asteroid, the government of America formulate a plan to destroy it. When the plan fails, all the world can do is wait. The main impact zone is revealed to be Dallas, Texas. Generally, the plot follows the lives and reactions of several characters: an astronomer, her father, her son, two firefighters from Kansas, two young doctors in Dallas and the heads of the government agency in charge of the situation.

After New York City firefighter Terry Lynch is unable to receive any compensation for an injury incurred during the off-duty rescue of a young girl, he grows suicidal. Furious, his brother Jimmy attempts to have Mayor Tyler intervene, but the corrupt politician instead denounces Terry as a drunk. Determined to get justice, Jimmy begins a graffiti campaign of embarrassing slogans mocking the mayor, which soon captivates the city.

Cantinflas is a clumsy fireman, who one day receives the visit of his little goddaughter, whose mother recently died in the jungle. After having work in a few fires, Cantinflas decided to quit and become a policeman, because is less dangerous. Everything goes well until a gang of gangsters kidnap the girl, because of a monetary inheritance.

The adventures of oil well fire specialist Chance Buckman (based on real-life Red Adair), who extinguishes massive fires in oil fields around the world.

Intertwining couples and singles in Los Angeles break-up and make-up based on the pressures and expectations of Valentine's Day.

Two high school enemies, uber-jock Harry and out-and-proud Sam, are forced to share a car ride to their Missouri hometown for a friend's engagement party on Valentine's Day. Things take a turn when Sam learns Harry has come out.

It's Valentine's Day again and Charlie Brown dreams the seemingly hopeless dream to receiving a valentine from anyone. All the while, the rest of the gang have their own trials whether it be Linus' struggle to get the biggest card he can for his beloved teacher, or Lucy trying to get some token from Schroeder while Snoopy and Woodstock are having fun spearing valentines on each other's nose.