In the foggy woods of
New England, three
egg poachers, Matt, Sam, and Burt are hunting
nightingale eggs. When Sam sees what he thinks is a
meteor crash nearby, he decides to investigate. He finds a red glowing cave with a stash of large eggs, which he smashes out of fear. Before he can finish, he is killed by an unseen entity, leaving one egg left intact. The mysterious being takes revenge for the destruction, first killing the other hunters and then going after members of a pop band led by the arrogant Rick, who are on a weekend camping trip. The band is accompanied by Laura, a girl whom Rick met and told about the weekend's plans, not expecting her to want to come along. Sharon, a member of the band and Rick's girlfriend, is jealous of Laura. Cathy and Tracy are also band members. Tommy (Oscar Martin) is a young boy living in a secluded house with his mother Molly and his short-tempered uncle Bill. He also finds the cave, and brings the remaining egg home where it hatches. The bald-headed, shaggy-bodied creature from the egg grows rapidly overnight until it is as large as Tommy. Tommy nicknames it "Trumpy" because he has a short,
trumpet-like
trunk. Tommy and Trumpy quickly become playmates. At one point, Tommy asks Trumpy where he is from. Trumpy indicates a star map which features the Big Dipper prominently. It also becomes clear that Trumpy has developed telekinetic powers around this time, as it flings various objects around Tommy's room. While the mother alien continues to look for her missing offspring, the pop band stops at Tommy's house for medical care after Laura encounters the alien mother and falls off of a cliff, later dying in the house. A strange dot formation (similar to the
Big Dipper) is later seen on her forehead. Rick's friend Brian and uncle Bill go to a nearby ranger station to use the radio. There they encounter the alien mother, as well as the body of a second poacher, which also bears the dot pattern. The alien kills Brian while Bill flees to the cabin. The alien arrives first, however, and kills Tracy in the band's
camper. Tommy witnesses the attack through his
telescope. The survivors decide to hole up in the cabin until the next day. Trumpy's mother sneaks into the house and kills Cathy while she is taking a shower. The survivors attempt to come to her rescue when they hear Cathy screaming, and Bill manages to wound the alien with a wild shot. Bill and Rick vow to catch Trumpy's mother before she can escape, so Rick takes one of Bill's
rifles and they go in pursuit of the alien. Immediately after they leave, Trumpy appears, scaring Molly and Sharon. Molly grabs a rifle and aims to shoot Trumpy, but Tommy protects his alien friend and hustles Trumpy into the woods. Molly and Sharon give chase, searching for Tommy, Rick, and Bill in the gloom. Eventually Trumpy and his mother reunite briefly before Rick and Bill find them. The alien mother attacks Bill, who shoots her once before being killed. Rick then fatally shoots the alien mother, who falls to the ground and disintegrates as she dies. Trumpy and Tommy disappear in the woods to say their goodbyes before Tommy reunites with his mother Molly, Sharon, and Rick. The film ends with Trumpy moving deeper into the woods; Tommy, Molly, Sharon, and Rick head back to the cabin. ==Cast==