If You Were the Last

Jane was forced to axe Benson to save Adam when she briefly lost her mind during their isolation in space. The psychological toll of being stranded for years caused her to snap, and she murdered Benson in a moment of madness. She later lied about Benson dying peacefully in her sleep to cover up the violent truth.

Earlier in the film, Jane confesses to Adam that she turned four power drills into dildos, revealing her mental state was deteriorating from the isolation.

After months of tension, Adam proposed sex as stress-relief without romance, pointing out that both were attracted to each other and that condoms weren't provided, though he joked radiation might have made Jane sterile anyway. They initially agreed to do 'everything but' but soon abandoned that plan and began having sex regularly as their countdown to Earth resumed.

Their earlier debate about sex reveals competing motives: Jane lists reasons not to, including attraction and their marriages, while Adam pushes past her objections.

During debriefings, Adam asked Jane to stay in contact, but she refused. This decision likely stemmed from her desire to focus on rebuilding her marriage to Tom and leaving the complicated chapter of their space relationship behind, though her feelings for Adam would later resurface.

Earlier, Adam says he hopes they can stay best friends, but Jane resists the idea of maintaining a purely platonic bond, hinting at her conflicted emotions.

At a White House dinner nine days after their return, the President asked Adam and Jane to demonstrate their dancing skills. The visible chemistry between them made Savannah realize Adam's feelings had shifted toward Jane. This public moment exposed the rift in their marriage and led to their breakup.

Jane admits to Tom that dancing with Adam was her favorite part of space life, foreshadowing how this connection would ultimately affect her marriage.

Jane confessed after discovering that Tom had been seeing Amber behind her back. The revelation that Tom had been unfaithful prompted her to come clean about her own sexual relationship with Adam, shattering any remaining illusion of their normal family life.

Tom initially resists Jane's request for a trip, showing tension in their marriage long before the confession.

During a run, Jane hears a song that transports her back to her time in space with Adam. The music triggers an emotional flood of memories and feelings she had tried to suppress, leading her to pursue contact with Adam despite being married to Tom.

Music is established as something Jane misses deeply while in space, and Adam helps her cope when she loses her music library.

After three years of isolation together, their bond evolved from friendship into genuine love. The intense circumstances forced them to confront what they truly wanted. In the end, Adam seeks out Jane and declares they are meant to be together, choosing their connection over their previous marriages.

Throughout their time in space, their relationship naturally deepens from friends to something more, with both eventually admitting their attraction and emotional dependence on each other.

At the Earth press conference, journalists ask about Benson. Jane lies and claims she died peacefully in her sleep. The truth, that Jane had to axe Benson to save Adam during a mental breakdown, would have revealed the psychological horror of their isolation and potentially jeopardized their public image and future prospects.

Jane's confession about turning power drills into improvised objects foreshadows her mental deterioration, which led to the violent episode with Benson.

The goat that Adam cared for aboard the spacecraft eventually died. While they lost their source of fresh milk, they gained approximately fifty meals from the animal, providing practical sustenance in their harsh reality.

Adam is established as the one tending to the animals, plants, chickens, and the goat, showing his role in their survival.

After returning to Earth, Adam kept the shuttle chickens in Savannah's house. The chickens buzz around and bother Savannah, representing Adam's inability to fully leave his space life behind and integrate back into normal Earth life with his wife.

Adam is introduced tending to the plants, chickens, and goat during their space mission, showing his emotional attachment to these creatures.

Adam missed his wife's hugs the most. While Jane longed for exploration and music, Adam's primary emotional longing was for physical affection from Savannah, specifically her hugs, highlighting how different their priorities were during isolation.

Their video messages from home reveal this disconnect: Adam hopes Savannah hasn't moved on, while Jane senses Tom would have loved being in space with her.

After Adam ran dry, likely referring to his emotional state or creative output, Jane made him homemade pop tarts to cheer him up. This act of kindness shows how they cared for each other and tried to maintain normalcy and comfort in their confined environment.

Jane is established as handling spacecraft maintenance and navigation, but she also takes on a nurturing role with Adam.