Fantastic Four, Vol. 3 #523 (2005)

Rising Storm, Part 4
The team sets out to rehabilitate Galactus, and hopefully change his idea of humanity so that he might think twice about his future hungers, but he doesn't respond to anything the way they'd hoped he would. With that task complete, they turn to switching Sue and Johnny's powers back, but something goes terribly wrong in the process.
Release Date: 2005