Two sci-fi geeks take a pilgrimage to America's UFO heartland. While there, they accidentally meet an alien who brings them on an insane road trip that alters their universe forever. For the past 60 years, an alien named Paul (voiced by ) has been hanging out at a top-secret military base. When he discovers he's been taken prisoner, the space-traveling smart ass decides to escape the compound and hop on the first vehicle out of town - a rented RV containing Earthlings Graeme Willy ( ) and Clive...

Playboy Britt Reid (Seth Rogen) becomes the new publisher of Los Angeles' "The Daily Sentinel" after the sudden death of his father. Britt's party life is about to change when he and his driver and kung fu expert, Kato (Jay Chou), stop a robbery. With the help of Kato, Britt starts a new career of fighting crime as the masked superhero "The Green Hornet".

Los Angeles and other cities around the world are being bombarded by meteors that seem to be slowing down once they hit the earth's atmosphere. The earth is suddenly being invaded by space aliens that have landed off the shore of LA, and who begin killing everybody along the beach. The military is ordered into action. Marine Staff Sergeant Nantz (Aaron Eckhart), who was about to retire, is reassigned to a new platoon. The platoon, flown by chopper to the forward operating base at Santa Monica...

Six years ago NASA discovered the possibility of alien life within our solar system. A probe was launched to collect samples, but crashed upon re-entry over Central America. Soon after, new life form began to appear and half of Mexico was quarantined as an INFECTED ZONE. Today, the American and Mexican military still struggle to contain "the creatures"...... Our story begins when a US journalist agrees to escort a shaken tourist through the infected zone in Mexico to the safety of the US border.