Owen and Cristina have come a long way. They've gotten back together and his PTSD seems to be under control. But Cristina, while she loves Owen, is unhappy with her work. She needs a teacher, someone to help shape her talent and drive into true skill. She needs a cardio god, and it just so happens, that Owen knows one. Meet Dr. Teddy Altman, a veteran that served with Owen in the war and also his best friend. The complication is she's in love with him and he had feelings for her before he met Cristina. Maybe he still has feelings for her. Finally, Cristina is satisfied with her work, but now there's a new love triangle to rival the classic Meredith-Derek-Addison.

How will this one turn out? Has Owen really gotten over what happened in the war?