A high school teacher's life is transformed when he and his students' field trip takes an otherworldly turn, and he's granted extraordinary abilities to fight against evil.
Aired: Mar 18, 1981A teacher and an FBI agent form an unlikely alliance after experiencing a clo...

























!['The Greatest American Hero' [01] TV Promo - 1981](https://img.streamfind.com/yt/w/355/NNiNS1SLZ2Y/sddefault.jpg )









