It's Valentine's Day at Torchwood, and the course of true love never did run smooth... Roses from Gwen, Valentines from who?
Myka and HG are in love. Pete and Claudia step in with the most tried-and-true romances they can think of.
A mysterious shopkeeper scatters the Torchwood agents through Jack's timeline, claiming a threat from the Trickster. Unsure of what's even going on, the team learns quite a bit about Jack's past... and his future. (Technically a full Whoniverse crossover, set somewhere between the Martha episodes and Fragments.)
Offices were absolutely off-limits, but Jack thought a rooftop under the stars was the next-best thing.
Ianto Jones is a librarian with something on his back. (Based of the Doctor Who episode Turn Left.)
Ianto Jones made a promise, and if poisoning the Captain's coffee won't work, then he'll just follow Jack Harkness to Flat Holm and murder him in person.