Warrning Sign is a 1985 science fiction horror film written and directed by Hal Barwood. Biotek appears to be an agricultural research center, but it is really a cover for a super-secret research center developing biological weapons. When an accident occurs, releasing a terrifying bacteriological agent, security quickly seals the complex trapping personnel inside. The security protocol is simple, seal the facility and wait until the situation proves safe, or everyone dies. It quickly becomes clear that the situation is far from safe. Public attention is drawn by the arrival of a heavily armed hazmat suit wearing military security detachment. Local sheriff, Cal Morse (Sam Waterston), arrives to investigate. He is horrified to discover that the locked down facility, is where his pregnant wife (Kathleen Quinlan) works. The good news is that not everyone is infected, the bad news is that some are. Can those who are uninfected be saved before it is too late?