Arriving on DVD later this year
As you will see, this entry is absolutely not a remake of Rec 2; instead it deviates from the Spanish films to continue its own mythology.
Picking up after the events of Quarantine, the story resumes at LAX, as passengers board a flight to Nashville. When a passenger becomes violently ill with a mysterious rabies-like virus, the plane makes an emergency landing at a large metropolitan airport. Jenny (Mercedes Masohn), a heroic yet inexperienced flight attendant, takes charge of the safety of her passengers. Relieved when a swarm of heavily equipped emergency vehicles, police units and the CDC arrive, Jenny and the passengers soon discover that they have been quarantined and are now trapped. Desperate to escape, Jenny enlists the help of one of the surviving passengers, a kindergarten teacher, Henry (Josh Cooke), to devise a plan to survive.
Source: You Tube