Complex sentence: Frey and Matilda are captured by Kruger's men and taken to Elysium as well, where they are surrendered to Delacourt, who prepares to extract the virus from Max's mind, which would kill him in the process.
Split into simpler sentences: Frey and Matilda are captured by Kruger's men and taken to Elysium as well. They are surrendered to Delacourt, who prepares to extract the virus from Max's mind, which would kill him in the process.