Complex sentence: They try repairing their car but, CJ is soon kidnapped by the Cadillac's occupants while outside, and a chase between both cars across the nearby frozen lake ensues, in which Scott's car is finally destroyed by its overheating problems.
Split into simpler sentences: They try repairing their car, but CJ is soon kidnapped by the Cadillac's occupants while outside. A chase between both cars across the nearby frozen lake ensues, in which Scott's car is finally destroyed by its overheating problems.