One dude was pulling out a control rod and the reactor instantly went supercritical and impaled him to the ceiling through his balls.

In four milliseconds, the heat generated by the resulting enormous power excursion caused water surrounding the core to begin to explosively vaporize. The water vapor caused a pressure wave to strike the top of the reactor vessel, causing water and steam to spray from the top of the vessel. This extreme form of water hammer propelled control rods, shield plugs, and the entire reactor vessel upward. A later investigation concluded that the 26,000-pound (12,000 kg) vessel had jumped 9 feet 1 inch (2.77 m) and the upper control rod drive mechanisms had struck the ceiling of the reactor building prior to settling back into its original location. The spray of water and steam knocked two operators onto the floor, killing one and severely injuring another. One of the shield plugs on top of the reactor vessel impaled the third man through his groin and exited his shoulder, pinning him to the ceiling.

24:20 they're rigging up shit to pull him out and bury him in a lead casket.

https://www.osti.gov/servlets/purl/1129428

https://en.wikipedia.org/wiki/SL-1

(http://www.autoadmit.com/thread.php?thread_id=3984348&forum_id=2#36109881)