Rescue Alfred | Main storyline Batman: AO Guide

You need to reanimate Alfred

Glide towards Alfred and land somewhere nearby. Keep tapping the interaction key/button at the right moments, to throw away the large rocks that trapped him. After you watch the cutscene, start reanimating Alfred, using the shock gloves, by pressing the attack key/button at the right moments. The action will then cut to the Blackgate prison [Blackgate - Main Entrance], which you have already visited at the beginning of the game.