Amazon Prime Video has unveiled the official trailer for the second season of its big-budget espionage series “Citadel”.

The story follows Mason Kane (Richard Madden), Nadia Sinh (Priyanka Chopra Jonas), and Bernard Orlick (Stanley Tucci) – elite operatives of a legendary agency destroyed by Manticore, a ruthless network backed by the world’s most powerful families.

When a terrifying new threat emerges, the three are pulled back into action. Now they must recruit an unlikely team of skilled new operatives and launch a globe-spanning mission to stop Manticore’s Brazilian billionaire Paulo Braga who threatens to unleash a cataclysmic piece of technology.

Lesley Manville, Ashleigh Cummings, Matt Berry, Jack Reynor, Gabriel Leone, Lina El Arabi, Merle Dandridge and Rayna Vallandingham co-star while Joe Russo and Greg Yaitanes direct.

Amazon originally had big plans for “Citadel,” the six-episode first season coming in as one of the most expensive television series ever made at $50 million per episode. Multiple non-English language spin-off shows were then announced.

Reviews were very mixed, and the streamer cancelled both of its spin-offs after one season each. Whether this will get a third season is not clear presently.

The second season of “Citadel” will premiere in full on May 6th.