The Warrior's Seal (The Tox Files‪)‬

A Special Forces team is thrust into a war with the past to save the president after an artifact unleashes a deadly toxin.

Special Forces operative Cole "Tox" Russell and his team are tasked in a search-and-rescue--the U.S. president has been kidnapped during a goodwill tour. The mission nosedives when an ancient biblical artifact and a deadly toxin wipe out villages. Tox must stop the terrorists and the toxin to save the president.