The whole episode is intense and brilliant, but like Brad said it is Midousuji that steals this episode, which is actually quite an achievement because there are a number of awesome moments here. The episode starts by not wasting any time and jumping into things, we get a minimal recap and then it is off to the race.
Things are immediately exciting because we are in the best part of the race; the battle of aces. However, this episode is more for the seconds to get their moment to shine. First we have Fukutomi's nice strategic move to have Shinkai be the assistant for the race. Not only is it a great move to troll Midousuji, but Shinkai was such a cool character last season that I love to see him get a moment of triumph after his split second loss to Midousuji last season.
And let's face it, it's absolutely delicious to see all of Midousuji's plans unraveling before his eyes. This episode also makes sure to remind us that Midou is a complete bastard here with the way he was using Nobu to block Arakita, playing on Nobu's ego and then laughing his ass of all the way as Nobu thinks he'll ever have a shot at being ace while Midousuji is around. It's a great scene and shows just how bad Midou is but also just makes him such a good villain that you really do have to love to hate him. He thought he'd crushed Shinkai but he comes back just as strong as before so the whole move to block Arakita ended up being a waste.
He then turns his sights onto Imaizumi, but Imaizumi has finally decided to give it all for the team and he's left his petty rivalry with Midousuji in the past, which was actually the best way to "defeat" Midousuji. It's at this point that you can tell that Midousuji is losing it because bumping Imazumi is a cheap move even by his standards. It does give Imaizumi an awesome if very brutal moment when he chooses to sacrifice his own body for the team. He is going to be damn sore after the day is over after the hitting the railing like that, but damn was it satisfying.
And then this is where Midousuji rises above all the other cheap tactic villains. Even after all his plots fail he's still not out. He's actually trained his ass off and forced his team to train their selves to the peak and now he's still in it when it becomes a match of pure strength. It's impressive and makes him a more formidable villain for it. When he gets down to it he knows when he has to keep his teammates as well, instead of letting the guy fall Midou makes the save. It's not out of any kind of team spirit or altruism, he just really needs that guy if he is going to win the battle of strength and it shows how easily he's switched tactics here now that his schemes have fallen apart. You can kind of see why the team respects him even if he is such a slimy bastard.
Now we're down to the final stretch and next episode we get to see the battle of the aces. Kinjou is going to be fucking awesome next week and I can't wait for it. He was cool this week in the little screen time he got, but next week should give him a chance to shine.
The post credits scene was brilliant in that it was both hilarious and terrifying.