Complex sentence: The best tornado they shot was a massive tornado in South Dakota on June 22,2012,with monster hail, they were not in the Dominator at the time, which ended up seeing their SUV's windows shattered by the large hail.
Split into simpler sentences: The best tornado they shot was a massive tornado in South Dakota on June 22,2012, with monster hail. They were not in the Dominator at the time, and ended up seeing their SUV's windows shattered by the large hail.