Complex sentence: The two travel through locations from their past they find in White Space, restoring them to normal along with many of their friends, including Knuckles, Amy, Rouge, Cream, Blaze and the Chaotix, while battling old enemies for the Chaos Emeralds.
Split into simpler sentences: The two travel through locations from their past they find in White Space, restoring them to normal. They meet many of their friends, including Knuckles, Amy, Rouge, Cream, Blaze and the Chaotix, while battling old enemies for the Chaos Emeralds.