Complex sentence: After realising that they were too powerful to defeat, he ran away from the bank in attempt to retreat, but was beaten by Aqualad by a tsunami-like waterfall and ended up in jail.
Split into simpler sentences: After realising that they were too powerful to defeat, he ran away from the bank in attempt to retreat. After going out into the raod, he was beaten by Aqualad by a tsunami-like waterfall and ended up in jail.