Monster from Green Hell is a science fiction B movie released on May 22, 1957, as a double feature with the English-dubbed, re-edited version of the Japanese tokusatsu film Half Human.

Some time later, in a remote part of Africa, Dr. Lorentz and his daughter Lorna perform an autopsy on a native and determine that he died of paralysis of the nerve centers caused by an injection of a massive amount of venom.

Arobi, Lorentz's African assistant, then informs him that a monster is believed to be terrorizing people and animals in an area known as Green Hell.

Several months later, Brady reads a newspaper account of turmoil in Central Africa caused by gigantic monsters and surmises that the wasps in the missing rocket were exposed to huge amounts of cosmic radiation because an earlier, minimal overexposure had resulted in the birth of a spider crab twice the size of its mother.

The safari battles brush fires, fever, drought and storms, eventually reaching the Lorentz compound where Lorna informs them that her father has not returned from a journey to Green Hell.

Later, Arobi arrives with the news that Lorentz has been killed by a monster living in the cauldron of a volcano and gives Brady a giant stinger that he removed from the doctor's shoulder.

The group escapes through another entrance and, just as they emerge, the volcano erupts, spewing massive lava flows that destroy all the wasps in the conflagration.

Jim Davis’s stock-footage safari arrives just in time to be irrelevant," and that the credits lack "a full accounting of who did what, special effects-wise.