Carter finally emerges from his re-certification test looking slightly worse for wear but with a big smile on his face. The doctor in charge of the test (who apparently is just fine with the fact that her assistant was a crazy person) says he did well, but not as well as Jo and not well enough to be able to take the test every two years. It'll be an annual thing for him. I'm totally cool with it taking place off-camera. Jo tells Carter that she's happy he's back but she's still perfectly capable of handling this town on her own. And now we know that she is, provided that she isn't hindered by a bunch of morons we're supposed to believe are brilliant scientists.