Complex sentence: Ted yells out that he has solved the problem and Dougal cheerfully remarks that everything is back to normal... which includes Ted's fear of flying, who abruptly screams "What am I doing on the feckin' wheels?!".
Split into simpler sentences: Ted yells out that he has solved the problem and Dougal cheerfully remarks that everything is back to normal, but so is Ted's fear of flying. He can be heard screaming "What am I doing on the feckin' wheels?!".