John Krasinski is set to take on his last and most dangerous mission yet as Jack Ryan in the fourth and final season of, which returns to Prime Video on June 30. In the official trailer, viewers see the CIA analyst turned Acting Deputy Director «facing an enemy both foreign and domestic» in the upcoming, conspiracy-driven episodes. «It terrifies me,» Ryan says at the beginning of the trailer, which sees him being questioned by Congress over the United States' possible involvement in a covert mission. According to Prime Video, he will be «tasked with unearthing internal corruption, and in doing so, uncovers a series of suspicious black ops that could expose the vulnerability of the country.
