When Recruit Torres reports for duty with a contagious infection, the Cadre must shut down the drill ground and decontaminate the entire academy. Meanwhile, Recruit Finley admits to a lingering injury, threatening his future with Class 36.
The recruits get their toughest assignment yet: a live fire that has engulfed a tower. Things get even hotter when the cadre determine that they're not taking the fire seriously enough, and Westphal finds himself in danger of being terminated again.
Class 36 is put through intense wild-land training and must learn to work with bulldozers, helicopters and very long water lines. Meanwhile, one recruit could lose his job after committing a major safety violation.
As Class 36 nears the halfway mark, Recruit Gonzales is caught sneaking a peek at Recruit Adelman's quiz, putting both men in jeopardy of being thrown out of the academy. Meanwhile, a class member is released after a difficult midterm exam.
Class 36 recruits encounter their first live burn, facing temperatures of up to 1000 degrees. Capt. Contreras stresses the importance of paying attention to detail, and he turns up the heat even further when they don't.