Warner Bros. has acquired Robert Archer Lynn's spec screenplay The Envoy for Joel Silver to produce.

The story revolves around a diplomatic courier who discovers his package contains plans for an attack against America. He tries to make it to the American embassy in Vienna with the plans, while deadly forces try to retrieve the package.

Andrew Rona will produce alongside Joel Silver. Robert Archer Lynn was a contestant on the HBO filmmaking series Project Greenlight. He has written and directed a number of low-budget thrillers since then, although The Envoy is the writer's first sale to a major studio.

No production schedule was given for The Envoy.