New York Times best-selling writer Robert Venditti (SUPERMAN '78, ORDAINED) joins forces with superstar artist Juan Jose Ryp (WOLVERINE) to deliver an epic action-adventure extravaganza in this brand-new, bone-crushing collection. Texas based Greenleaf Oil has discovered that the world only has 50 years of oil left. Which means Greenleaf only has 50 years of profit left. But their enterprising CEO has a harebrained scheme to change history. Using time-travel technology they will send a team of mercenaries armed with weaponized mech suits -- aka TANKERS -- back to the end of the Cretaceous Period and deflect the asteroid that hit the Earth and killed all the dinosaurs. Just a small deflection though, they aim to have it make one more orbit around the solar system before impact. More time means more dinosaurs are born which means more oil in the present which means more profits for Greenleaf. This, of course, is a horrible plan and it goes horribly wrong. The Tankers return to Earth to find the planet overrun by primeval jungle and gigantic hyper-evolved dinosaurs. The Tankers must fight off these modern super-dinosaurs to once again return to the past and fix their mistake.