With much of America lying in ruins, the rest of the world braces for a global sharknado, Fin and his family must travel around the world to stop them.

It’s the true American story of a legendary family feud—one that spanned decades and nearly launched a war between Kentucky and West Virginia. The Hatfield-McCoy saga begins with Devil Anse Hatfield and Randall McCoy.. Close friends and comrades until near the end of the Civil War, they return to their neighboring homes—Hatfield in West Virginia, McCoy just across the Tug River border in Kentucky—to increasing tensions, misunderstandings and resentments that soon explode into all-out warfare between their families. As hostilities grow, friends, neighbors and outside forces join the fight, bringing the two states to the brink of another civil war.

Jason Gedrick and a small group of Marines are stranded in the remote Afghan desert. But it ain't the Taliban that's worrying them, it's these giant refugees from Tremors. In fact the big worms prove to be an ally of sorts by doing better against the Taliban than themselves but battling these enemies is something not covered in their training.