Complex sentence: Jason chases Clay and Whitney; she pretends to be Pamela, distracts Jason and stabs him in the chest with his own machete then Clay chokes him with a steel chain before Clay and Whitney leave, Jason bursts through the wooden dock and grabs Whitney.
Split into simpler sentences: Jason chases Clay and Whitney; she pretends to be Pamela, distracts Jason and stabs him in the chest with his own machete. Before Clay and Whitney leave, Jason bursts through the wooden dock and grabs Whitney.