Harrell meets with Vidrine and persuades him to conduct a negative pressure test, which indicates the cement has not properly sealed the well from the high-pressure reservoir. Vidrine disputes the test finding and orders a second test. After concluding the second test was a success, Vidrine pressures senior toolpusher Jason Anderson to run more tests and orders the rig to remove the drilling mud and prepare the rig to move to its next job. At first, the operation goes smoothly, but the cement job eventually fails, triggering a massive blowout that overpowers and kills Weise, Roshto, and the majority of the other drill team members.