The Avengers [John Steed Emma Peel] #1

John Steed and Emma Peel are having a picnic when it is interupted by two men wearing Roman armor having a sword fight. After one man is hurt Emma and John defeat the other and rush them both to a hospital. The uninjured man (Helmut, a foreign spy) escapes. John finds a clue in the wounded man's clothes and goes to check out where a movie with Roman soldiers is being filmed and is mistaken for an extra. Helmut recognizes him and tries to kill him during the filming of a fight scene. Emma has found out what is going on from the wounded british spy and arrives in time to save John.