Answer the following question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What do David and Russell find submerged in a swamp? Title: The Crazies Movie plot: In the town of Ogden Marsh, Iowa, David (Timothy Olyphant), the local sheriff enjoys a baseball game. His deputy, Russell (Joe Anderson), spots Rory Hamill (Mike Hickman), a local resident, entering the outfield holding a shotgun. David is forced to shoot and kill the unresponsive Rory. David and his wife Judy (Radha Mitchell), the community doctor, begin to notice other town residents exhibiting bizarre behavior. The next night, a local farmer burns his house down with his wife and son trapped inside, killing them.While investigating the discovery of a pilot's body in a swamp, David and Russell discover a cargo plane submerged under the water. Communication services are lost, and that evening soldiers wearing hazard materal suits arrive to take all residents to quarantine at the high school. Everyone is examined for symptoms of infection. Judy does not pass the examination and is separated from David. She explains her fever is due to pregnancy, but is sedated anyway. She wakes strapped to a gurney as the perimeter of the facility is breached by the infected. The military personnel evacuate, leaving Judy and others behind. David is nearing evacuation, but escapes and rejoins Russell. They rescue Judy and her medical assistant, Becca (Daniele Panabaker) from an infected citizen whom is killing those in the infirmery.David, Judy, Russell, and Becca make their way out of town on foot, unable to find a working vehicle. They encounter Becca's boyfriend, Scotty McGregor (Justin Miles), when they pass through his farm. Soldiers raid the farm, shoot Scotty and his mother, and burn the bodies. The group repair a patrol car, and once on the road are spotted by an attack helicopter and drive into a car wash for cover. Infected car wash employees attack and kill Becca, and the helicopter destroys the car.On foot, Russell disables a passing government SUV with a police spike strip. The driver, presumably a government agent (Glenn Morshower), reveals the cargo plane contained "Trixie," a "Rhabdoviridae prototype"...
Answer:
Cargo Plane