In an attempt to solve an international case, Jake and Rosa are forced to work with a pair of Swedish cops and things get very competitive, very quickly. Meanwhile, Amy and Terry offer to help Gina prepare for a big test and Holt enlists Charles to sub in as his squash partner for an annual tournament.
The diamond is called the "Köttbullediamant." Köttbulle is Swedish for meatballs, a popular delicacy from the country.
This episode takes place before Ava as Agneta re-arranges dates that happened before Thanksgiving and Jake and Rosa go after a container coming in on November 10. This means that the episode took place between November 10 and November 13.