28 Weeks Later (2007): A sequel to the 28 Days Later (2002), this furthers the story line established in the first movie. We leave behind Batman's Scarecrow and pick up new characters; focusing on a woman and man who are holed up in a farm house. We know right away that the guy is going to be trouble because his hair is greasy, his eyes are wild, and his teeth are gross.
Oh wait... this is Britain... that means we know none of this.
We focus on a woman and her husband who is just a regular Joe...
So Greasy Guy makes it to a safe zone where UN forces (lead by US soldiers because that explains our choice of actors) have buttoned down the country after most of the infected from the first movie have starved to death.
Did we explain that it's not zombies, it's "infected" so they can die, don't need head shots to kill them, and are fracking fast (I hate fast zombies - and Illinois Nazis).
Greasy Guy meets back up with his kids (Jess from Long Way Down and some guy who's not been in anything else).
The kids break quarantine (because that's what kids like this do in movies like this - See Coral in The Walking Dead) and find their dear ole Mum (Murron from Braveheart).
Greasy Guy, Jess, Dead-End-Kid and Murron get back together. GG and M seal their love with True Love's Kiss, and Hawkeye (having left his bow and arrows behind in checked baggage) gets to shoot lots of people from his high-hide with a cool sniper rifle.