The Hills Have Eyes

Fred warned them about the mine because he knew the area was dangerous - it's in a nuclear testing zone used by the Air Force for gunnery practice. Even though Fred was leaving due to Jupiter's threat, he wasn't willing to let innocent people wander into a deadly area unknowingly. His warning about the mine being exhausted was technically true, but he omitted the more dangerous truth about the military testing zone.

Earlier, Fred tells Ruby that her father Jupiter would kill him if he discovered her intentions, showing Fred knows the danger firsthand.

The explosion was orchestrated by Jupiter's clan, specifically Mercury, who secretly approached the gas station. This wasn't an accident - it was a deliberate act to prevent Fred from escaping. After Ruby's arrival and her confrontation with Fred, Jupiter's group decided to strike, destroying Fred's only means of transportation to ensure he couldn't run away.

Fred's ominous statement 'There'll be hell to pay now!' immediately after the explosion confirms he knows who was responsible.

Fred had a dark past with Jupiter. When Bob arrives at the abandoned station and stops Fred's suicide attempt, Fred reveals that Jupiter's monstrous nature led to the ruin of his family through a series of tragic events. Jupiter is Ruby's father and the leader of the cannibal mutant clan that inhabits the mountains. Fred had been running his gas station but decided to leave after Jupiter threatened him, likely because Fred knew too much or had some connection to the family.

Fred warns Ruby that her father Jupiter would end her life if he discovered her plans, showing the ongoing conflict between them.

Jupiter killed Fred because Fred was trying to leave the area and had helped Ruby, possibly enabling her escape. Jupiter's violent entry and brutal murder of Fred with a crowbar was both punishment for Fred's attempt to abandon the region and a demonstration of his power. This murder also eliminated someone who knew about the clan's existence and could potentially expose them.

Fred's warning to Ruby about her father's wrath and his plan to escape establish the consequences of defying Jupiter.

Ruby helps the Carters because she was forced against her will to participate in the clan's brutal activities. After being captured, she's imprisoned and forced to eat Beauty's remains, which haunts her with the dog's howls. Despite being Jupiter's daughter, Ruby clearly opposes his violent ways and seizes the opportunity to aid the family's survival, particularly protecting the children. Her actions suggest she's conflicted about her father's clan and chooses humanity over her biological family.

Ruby's earlier desperate plea to Mercury about 'Grandpa Fred running away' shows she has her own agenda separate from Jupiter's plans.

The Carters left the main road because Fred deliberately misdirected them. When they asked about the silver mine, Fred steered them away, claiming it was exhausted and the area was a gunnery range. However, Bob ignored this warning and decided to find the mine themselves, leading them off course into the actual nuclear testing zone where they crashed their station wagon. This sequence of poor decisions, fueled by Bob's desire to surprise his wife for their anniversary, trapped them in a deadly area.

Fred's warning about the Air Force using the area as a gunnery range was deliberately vague but contained truth about the danger.

Mercury is a member of Jupiter's cannibal mutant clan, distinguished by wearing a feathered headdress. He secretly approaches Fred's gas station while the Carters are there, and Doug overhears Ruby asking Mercury for help. Mercury appears to be one of Jupiter's trusted sons or operatives, involved in tracking and capturing victims. He's part of the family unit that includes Jupiter (the patriarch), his children, and other mutants who live in the hills and hunt travelers.

Mercury's approach is noted in the timeline as adding 'an unsettling layer of tension, foreshadowing the dangers that are about to unfold.'

Beauty was disemboweled by Jupiter's mutant clan during one of their attacks. Bobby discovered her mutilated body in the hills while searching for her, which traumatized him and served as a grim confirmation that they were being hunted by savages. The killing of Beauty also provided food for the mutants and was later used to torture Ruby, who was forced to consume the dog's remains. This event marks the transition from a road trip to a survival nightmare.

The family's German Shepherds were their only protection, making Beauty's loss a critical vulnerability.

Big Bob is killed by Jupiter at Fred's Oasis. After the family crashes in the nuclear testing zone, Bob ventures to Fred's gas station for help. He arrives to find Fred attempting suicide and intervenes to save him. However, Jupiter then bursts into the station and kills Fred with a crowbar. Bob is also attacked and collapses, left vulnerable to Jupiter's revenge. His death marks a major turning point, removing the family's protector and leader.

Bob's heart condition and early retirement from the police force set up his vulnerability against the physically stronger mutants.

Baby Katy survives the attack. She is with Lynne, Doug, Brenda, and Ethel in the station wagon when Jupiter's sons invade. While the summary indicates brutal violence and chaos, Ruby ultimately helps save the Carter children from the chaotic situation. The survival of the infant represents one of the few hopeful elements in the film's dark ending, though it's unclear if all family members make it out alive.

The family prays for divine protection early in the story, establishing the vulnerability of the group.

Jupiter leads a clan of cannibalistic mutants who live in the mountains surrounding the desert. While the exact origin isn't fully explained, Fred reveals that Jupiter caused 'the ruin of his family through a series of tragic events,' suggesting the mutants may be the result of nuclear testing or inbreeding in isolation. They're depicted as savage, brutal beings who hunt travelers in the desert. Jupiter is Ruby's father, and his sons include Mercury and others who participate in the attacks on the Carter family.

The nuclear testing zone setting implies radiation may have caused the mutations that led to the clan's existence.