When Scotty is captured by a local gangster he encounters a beautiful drug addict working for the mobster. Their attempts to escape invariably lead to recapture. And, of course, Kelly is of no help when he also joins this endless game of cat and mouse.
Our duo needs to keep an obnoxious drug smuggler alive until his escort arrives to extradite him to the United States to testify or face justice. But no one is immune to the intrigue on this assignment.
Scotty and Kelly are assigned to investigate the death of an American agent in a fiery car crash and more important, the whereabouts of the secret documents he was carrying. Word on the street is the documents were destroyed in the fire but now one really believes that, including the bad guys who are happy to trade cash or bullets to acquire them.
Scotty and Kelly pound the pavement to find an escaped prisoner, a Chinese agent scheduled for exchange for an American held by the Chinese. Surprise! He doesn't want to be exchanged which leads to some hazardous situations.
Scotty and Kelly, with the aid of a new woman recruit, an American scientist and a bellman, need to obtain a sample of a Chinese biological warfare agent. Alas, their colleagues experience the dangers of the spy game.
This week's assignment is to recover a roll of microfilm stolen from an Army courier. Unfortunately its in the hands of a crime lord. To get it back Kelly has to meet the gangster price, in cash or blood.
In the series pilot (whose showing was delayed well into the first season), Kelly narrowly escapes a sniper's bullet while playing a tennis match in Hong Kong. He and Alexander Scott, a pair of U.S. agents, aren't on assignment at the time. Shortly thereafter, they are told to find a freight train that disappeared between China and Hong Kong. The train was only carrying building materials. It turns out, however, there was a passenger who is of great interest to China.
Kelly and Scotty are in Tokyo to help a Russian professor defect. Their cover story is they are giving tennis lessons to an American businessman's daughter. Plans go awry and the Russians retaliate by kidnapping the girl.
Scotty and Kelly combat a ruthless gang of smugglers who have co-opted an entire fishing village into their scheme. Although totally unarmed, with a little help from the villagers they might have a chance.
Alexander Scott, traveling undercover in Mexico as Dr. Smithfield, is abducted along with three other agronomists that an amiable freelance spy is planning to sell to a foreign power. Kelly teams up with a taxi driver to track down his kidnapped comrade.
Scotty sportingly bets Kelly a dollar that he is capable of tracking down his friend anywhere in Mexico within a week. But the hide n' seek game becomes desperately urgent after Scott learns Kelly has unknowingly been infected with anthrax that will kill him if not treated within 24 hours.
A question over a five-dollar expense account item for "glass pants" for Scotty's mother leads to the boys recounting for Miss Clavell the whole story of their assignment to General Ortiz, democratic leader of an island republic ousted in a revolution and now living in exile in Taxco, Mexico. The general is seeking the United States' assistance in waging a counter-revolution, but Ortiz's wife is suspiciously resistant to allowing Kelly and Scott meet the general. Why the cover-up?
Kelly's girlfriend insists she was rescued by the Aztec god Quetzalcoatl. Kelly and Scott's investigation of her claim soon dovetails with their assignment to locate a Soviet Air Force pilot thought to be defecting.