A fire breaks out on the 12th floor of the First Interstate Tower building in Los Angeles. Meanwhile, Paul and Susan are working late on the 37th floor, along with cleaning staff, security, and building engineers, some of whom are installing sprinklers. The fire spreads rapidly and those in the building quickly become trapped.

• Lee Majors
• Lisa Hartman
• Peter Scolari
• John Laughlin
• Kim Miyori
• Michael Beach
• David Dunard
• Julian Reyes