Warning: There are spoilers ahead for Yellowjackets season 3.The fate of Mari Ibarra (Alexa Barajas) creates a new mystery in theYellowjackets season 1 finale. As one of the survivors ofYellowjackets' plane crash in the wilderness, Mari has been in the show since season 1. She has only been featured as a teenager inYellowjackets' 1990s timeline, with her role becoming increasingly more prominent, especially in season 3 as her feud with Shauna Shipman (Sophie Nélisse) intensifies, and when she crosses paths with Coach Ben Scott (Steven Krueger), and shares where he is hiding, which leads to his trial, torment, and eventual death.