After Spikes fight with Buffy, he goes to LA searching for the ring knowing that Buffy got the ring to Angel. The Only Oz appearance on Angel. Seeing Oz in LA is great! Oz was already going to LA for a gig with his band so he agrees to give Angel the ring for Buffy. Spike torture Angel to try to get him to reveal the location of the ring. Its a great crossover because first of all its the first crossover and Spike and Oz both come to LA. My fav quote from this episode is:
Spike: ... (About Buffy) She is cute when she's hurting, isn't she? Angel: I think she's cuter when she's kicking your ass\
All together great episode!