That was the second last one of the first season, and I didn't care for it any more than the others, what with the pointless reveal that the REAL Jack Harkness just happened to be gay too and ending by snogging a guy in public (never mind in front of his aircrew), you just simply DIDN'T do that in 1941 Britain, it would be professional suicide, and he probably wouldn't have been allowed to fly again.
And I'm sorry, you're Torchwood, you're stuck in the same city at the wrong time.. and you never think to contact the 1941 Torchwood team? How thick ARE these people...