Hilarious and outgoing, Brittany Forgler, is everybody’s best friend ― except her own. Her partying, underemployment and toxic relationships are catching up with her. She receives a startling wake-up call when a visit to the doctor reveals how unhealthy she is. Motivated to lose weight, but too broke for a gym and too proud to ask for help, Brit is at a loss, until her neighbor pushes her to run one sweaty block. Soon, she sets an almost unthinkable goal: the New York City Marathon.

Formally, corecore content on TikTok stitches together seemingly unrelated clips—whether culled from news footage, social media, films, livestreams, memes, or whatever else in the media ether—set to often somber music, to convey new meaning and emotion through juxtaposition.