Complex sentence: During the last episode of season 6 entitled "Last Day on Earth", Aaron and several others volunteered to help Rick go in an RV with a frail and pregnant Maggie, who needed urgent medical attention.
Split into simpler sentences: During the last episode of season 6 entitled "Last Day on Earth", Aaron and several others volunteer to help Rick. They go in an RV with a frail and pregnant Maggie, who needs urgent medical attention.