Leatherhead has a nightmare and attacks Mikey. Mikey actually looked dead there for a minute (shudders). It was touching to see how both Leatherhead and Raphael reactions. They both really love Mikey and it's nice to see those moments when it shows. I felt so bad for Leatherhead. Enduring all that torture with Bishop, and then thinking he killed his best friend. When he was mourning for Mikey I just wanted to cry.
My only complaint about this episode: the villain. He was probably the worst bad guy ever. He was completely unoriginal and his voice-acting was awful. He didn't have any sort of personallity. Thankfully, this episode was focued more on Leatherhead's internal conflict than the him, so it doesn't completely ruin the episode.