Sam is dying. Dean asks for help from the angels. Castiel tries to adjust to being human as the angels come after him.
Sam collapses and Dean sends out an emergency plea through prayer to any, and every, angel in the area to help Sam. In exchange, Dean agrees to owe that angel a favor. However, his request is answered by numerous angry angels who want to kill him. Meanwhile, Castiel struggles to survive without his powers.—Anonymous
Sam is dying after trying to close the gates of Hell. After the angels have fallen Sam is left dying and in the hospital, whereas Dean is heartbroken and Castiel is on a kill list. Dean makes a brave decision and asks an angel to heal Sam but after the fall most angels are weak on Earth and do not have the power to achieve what they can do.