This episode is a comedic recap of the second season of Kuroko no Basket. What you'll get is Kuroko, Kagami, Kise, Aomine, Momoi, Midorima, Takao, Hyuuga, Izuki, and Kiyoshi talking about the Winter Cup games that were shown in that season. Murasakibara and Akashi also make a little appearance. Essentially, you're getting a funny little meta episode where all those characters chat with each other and commentate over the games. Plus, you'll get a few extra funny scenes like Aomine talking to Tetsuya 2 and Midorima shutting down one of Izuki's puns. The thing I liked about this episode was that you got to seeAomine talk about Touou's second match with Seirin. It was cool to see him somewhat talk about being in the Zone with Kagami who also talks about it. Kise also talks about the Kirisaki Daiichi game, or rather, he talks about his displeasure at watching them play underhandedly. It's just interesting to watch characters talk about things they wouldn't normally get to talk about, which is sort of the purpose of these episodes.
There's also a little interview with Akashi in there, so that's fun. If you really like Kuroko no Basket and the characters in it, definitely check these fan disc episodes out. They're quite funny.