This is the seventeenth, and final, Superman cartoon made by the Fleischer/Famous Studios and as such, it was quite a very exciting one! There's no Lois Lane in this one but there is a blonde secret agent from Washington, D.C. who sounds a bit like her (not surprising since she's voiced by Lane's Joan Alexander). She's being chased after by some Nazi saboteurs who's being followed by Clark Kent on the trunk of their car. I'll stop there and just say that with all the shootouts and some dangers involving some wire towers and a moving bridge, Supes has some work cut out for him! The action here is so intense that if there had been a letter ratings system then, this short would probably have been rated PG! So on that note, Secret Agent is definitely worth a look for any Superman completists out there.