He requests leave but instead is sent to China on a top-secret mission by Snow.

After setting flight records, she embarks on a top-secret mission.

He had just severely compromised a top-secret mission sponsored by the most powerful nation on earth and one of its closest allies.

They are to carry out a top-secret mission against the aliens which, if successful, could mean the end to the war.

Strategic site for nabbing drug lords and running top-secret military missions.

Once the serial number is traced, we learn it came from an Air Force jet on a top-secret mission.

An object of incredible value is on the Titanic, and a small group on a top-secret mission goes after it.

This was a top-secret mission, and the Iowa's crew complied to a man.

This helped give the impression of a top-secret mission, that the information could only be carried safely in his brain.

Moreover, "the work makes for great stories - it can sound as if I was sent on some top-secret mission."