By threats of torture, Angel forces Wolfram and Hart to help him, and is taken to a mysterious entity in the evil lawyers' White Room. With her information, and Lilah's help, he performs a black ritual which makes Sahjhan solid.
It's all for nothing, as he learns only that there is no way to reach Quor'toth, the dimension Connor is in, and is nearly killed by Sahjhan. Only Justine's intervention saves him.
With Justine's help, Wesley is found, still alive. When Angel visits him in hospital, though, even his understanding of Wesley's reasons won't let him forgive his friend's betryal.