Former musician and gunslinger El Mariachi arrives at a small Mexican border town after being away for a long time. His past quickly catches up with him and he soon gets entangled with the local drug kingpin Bucho and his gang.

After a deadly viral outbreak, an elite squad of special forces soldiers must infiltrate a quarantine zone to rescue a scientist who holds the only cure to save mankind.

A traveling mariachi is mistaken for a murderous criminal and must hide from a gang bent on killing him.

A couple loses their children near some caves in Tijuana. The children return to their parents the next day, unharmed. However, something has happened to them.

After an experimental bio-weapon is released, turning thousands into zombie-like creatures, it's up to a rag-tag group of survivors to stop the infected and those behind its release.