Complex sentence: It is up to Nick to try to come up with a plan to escape, and convinces Van Der Linden to allow Po to repair the aircraft and to allow the hostages to be exchanged for Olga.
Split into simpler sentences: It is up to Nick to try to come up with an escape plan. He convinces Van Der Linden to allow Po to repair the aircraft and to allow the hostages to be exchanged for Olga.