Complex sentence: Furiosa drives through a biker gang controlled canyon to barter a deal for safe passage, but the gang spots Joe's forces pursuing and turns on Furiosa, forcing her to flee while the bikers detonate the canyon walls to block Joe.
Split into simpler sentences: Furiosa drives through a biker gang controlled canyon to barter a deal for safe passage, but with Joe's forces pursuing, the gang attacks Furiosa. She flees while the bikers detonate the canyon walls to block Joe.