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In this fantasy comedy-drama series, an unsuspecting high-school teacher named Ralph finds himself in possession of superpowers when he is given a special suit by friendly aliens. Instructed by the aliens to work together with a gruff FBI agent to fight crime. Although endowed by the suit with super strength and the ability to fly, Ralph struggles to control his new powers, and he stumbles and bumbles his way to victory over the bad guys. William Katt, Robert Culp and Connie Selleca star in the series, which aired from 1981 to 1983 on ABC.

The Greatest American Hero is a Action & Adventure, Science Fiction, Fantasy series that is currently running and has 3 seasons (42 episodes). The series first aired on March 25, 1981. It has moderate reviews from critics and viewers, who have given it an IMDb score of 7.3.

The Greatest American Hero is available for streaming on the ABC website, both individual episodes and full seasons. You can also watch The Greatest American Hero on demand at Tubi TV Amazon, Vudu, iTunes, Tubi TV online.

3 Seasons, 42 Episodes
March 25, 1981
Action & Adventure, Science Fiction, Fantasy
Cast: William Katt
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The Greatest American Hero Full Episode Guide

  • Bill is given a Man of the Year Award by a small South American country only to return there to re-live his past and future.

  • Ralph, Pam and Bill try to save a beautiful stallion from an obsessed rancher.

  • Ralph and Bill find themselves protecting a rock star after an attempt has been made on his life.

  • Ralph and Bill play a real life game of dungeons and dragons to save the life of a Middle Eastern shiek.

  • Ralph's unusual new student creates international chaos when his class project of building a radio telescope for tracking orbiting satellites brings the CIA and KGB down on the school.

  • Hinkley find himself involved in a bizarre and nightmarish escapade when he investigates murder attempts on three well known magicianswho are planning on performing three of the late great Carlini's tricks at the magic Castle on Halloween.

  • The fake death but real kidnapping of Maxwell leads Ralph on a wild chase to a tropical island, where a demented scientist plans to use Maxwell in his genetic engineering experiments -the last of which created a hideous monster.

  • Ralph and Maxwell battle sinister forces that have taken a young scientist's uncle as hostage in exchange for an advanced weapon that could dramatically shift the world's balance of power.

  • Ralph and Maxwell become embroiled in a bizarre scheme when a disgruntled news anchorman plots the terrorist takeover of a nuclear power plant to launch his political career. William Windom guest stars.

  • The biggest day in the lives of Ralph and Pam - their wedding day is made even more complicated when the President sends Ralph on a secret mission to the North Pole.

  • Ralph and Pam - who decide to become engaged - discover that Maxwell's gift of a tropical island vacation is a trick to use Ralph and his super suit in recovering a stolen super-secret military aircraft .

  • At a high school reunion, Ralph is reunited with an old friend who is now a famous quarterback. Ralph is shocked to learn that the quarterback is taking money to throw a game, until he discovers that his friend is acting under duress -- his wife is being held hostage by an unscrupulous gambler.

  • Ralph is critically wounded when he rescues agent Maxwell from a band of neo-Nazis, which leads to an eerie high speed chase into the desert where his alien protectors save his life and reveal the secret of operating his super-powered suit - in a dramatic face-to-face confrontation.

  • Love is blind, even for Bill Maxwell, who finds himself falling for a beautiful foreign agent. Will love or the deadly, Mr. David stop Bill's heart first?

  • Ralph's Mom is going to marry a con man who is smuggling a micro-chip that corrupt oilmen have killed for.

  • Ralph teams up with a hamburger helper -- Captain Bellybuster to bust a drug ring.

  • Ralph's good deeds get complicated when two convicts escape and Bill thinks he's the target.

  • Ralph's suit proves no match for the I.R.S., when a satchel of money from a kidnapping turns up in Ralph's living room.

  • When Ralph uses the suit to help his associates realize their dreams, it complicates all their lives.

  • Hinkley and Pam's Squaw Valley vacation turns serious when they call in Bill to help a Czechoslovakian down hill racer and his girlfriend defect with secret information.

  • Piracy, drug smuggling, a corrupt warden of a penal colony-- and maybe even a sea serpent, are the ingredients to this tropical punch.

  • Ralph, Pam, and Bill find out how the suit will do against voodoo, when they find themselves pitted against the evil president of a small islandcountry in the West Indies.

  • Ralph puts on the "jammies" to keep the space shuttle from crashing. The trouble is he becomes electrified and releases a space monster who is headed for L.A.

  • Ralph becomes a human cannonball to investigate the disappearance of a Polish clown.

  • Ralph gets tied up in time while trying to save Pam from an air crash before it happens.

  • Ralph suffers amnesia when he gets knocked out while trying to stop a hijacked train.

  • Ralph and Bill have to save mankind from a deadly plague virus that a fanatical right wing military group hopes to unleash on a unsuspectingworld.

  • A class field trip turns in to a nightmare for Ralph and Bill when they are trapped in more ways than one, while searching for a lost gold mine.

  • Will Ralph's suit protect Bill from a real estate agent-- or his ghost?

  • The kids' big break could be ruined if Ralph can't stop terrorists from releasing nerve gas at their concert.

  • Ralph tries to save himself and a town from rampaging motorcycle gang.

  • When Ralph tries to deliver the will of a dead man who is alive, he finds himself in the middle of a close encounter of the strange kind.

  • When America's national pastime and national security are endangered, FBI agent Bill Maxwell sends superhero Ralph Hinkley into the thick of a major league pennant race to become baseball's hottest overnight sensation. Special guest appearances are made by talk show host Mike Douglas and ABC Sportscaster Don Drysdale.