Complex sentence: After a diving team at Wilkes Ice Station is killed, the station sends out a distress signal which is picked up and a team of United States Recon Marines lead by Shane Schofield, code named Scarecrow, arrives at the station.
Split into simpler sentences: After a diving team at Wilkes Ice Station is killed, the station sends out a distress signal. A team of United States Recon Marines led by Shane Schofield, code named Scarecrow, arrives at the station.