San Francisco, USA, five minutes before it happened: Fragments of news reports show a future world as it adopts H+, a radical new way to be connected to information and one another through only one's thoughts via a high-tech implant. While the breakthrough is hotly anticipated by the masses, some malcontents do not eagerly adopt it. As a couple parks in an underground airport garage, the husband, Lee, surreptitiously watches a football game on his H+, upsetting his wife, Julie, who wants him to drive safely. Their domestic squabble is interrupted by a bizarre spectacle that throws their world into chaos.

San Francisco, USA, 15 seconds after it happened: Julie and Lee stand shocked at the fallen people surrounding them in the parking garage before Lee risks a similar fate by rushing to their aid. A mysterious bearded man in glasses, Kenneth, appears and leads a small group down to Level 6, where he insists they're safe. But some in the group are skeptical of their hero, particularly his theory for what has just happened.

Helsinki, Finland, seven years before it happened: A young man, Topi, enters a bar to meet a woman named Manta, with whom he has chatted online. Manta plays mysterious, giving Topi a hard time, but Topi may have secrets of his own.

San Francisco, USA, one minute after it happened: With a small group from Level 6 of the parking structure, Kenneth takes Lee's body away from the sprinklers to a van, hoping to save him.

Mumbai, India, five months before it happened: Hard-charging technology executive Breanna and her husband, Connal, both of whom are Irish, meet with a doctor, Gurveer, and a young woman, Leena, who are both Indian, to arrange a surrogate pregnancy. When the introductory meeting turns into something more like an interrogation and Breanna leaves to continue a work call on her H+, Connal tries to make a more human connection.

Oria, Italy, two years after it happened: In a desolate village, Matteo tries to help a man injured in an accident, but Matteo realizes that getting the medicine he needs will not be easy.