Complex sentence: Renner manages to protect Christine and Zoey when the Wolf's men start shooting to kill him; he kills them all, and while the Wolf is trapped in an elevator, he breaks the cable, causing it to crash to the basement floor.
Split into simpler sentences: Renner manages to protect Christine and Zoey when the Wolf's men start shooting; he kills them all. While the Wolf is trapped in an elevator, he breaks the cable, causing it to crash to the basement floor.