Even as tornadic supercells continue to tear across Texas, a frustrated Sean heads to Oklahoma for a reunion with his old chasing partner, Josh Wurman and the massive Vortex 2 research project. Reed sees a different opportunity: challenge Josh's Dopp... (more)ler radar with his new military-grade mobile radar. The race for the holy grail of tornado data explodes as tempers flare, including an unhappy Joel who doesn't care much for Reed's new mission.