It’s July 2010, and Kevin Systrom is on holiday in Mexico when he has an idea for how to save his failing app: offer filters to make users’ photos more appealing. He gets back to San Francisco and teams up with his friend Mike Krieger. Together they launch Instagram, a platform that will revolutionize how we interact with society. Meanwhile in Beijing, China, Zhang Yiming starts a news aggregator app powered by AI. It learns which stories users like and feeds them more of it, giving people what they want before they know it. This powerful algorithm will become the foundation for TikTok, an app that will become a proxy battleground for the feud between the U.S. and China.