Complex sentence: Ray and Chris have to get Carden out of the wilderness and handed over to the authorities before his men, highly-skilled ex-military thugs, can track them down, rescue Carden and kill the Keenes.
Split into simpler sentences: Ray and Chris have to get Carden out of the wilderness and hand him over to the authorities. Carden's men, highly-skilled ex-military thugs, track them down to try rescue Carden and kill the Keenes.