Complex sentence: Invasion episode "Alienated" set five years later, Kaldur, upset over the death of Tula and the revelation that Aquaman hid his true farther from him has betrayed the team and joined his father, Black Manta.
Split into simpler sentences: Invasion episode "Alienated" set five years later, Aqualad is absent from the team. It is later revealed that Kaldur, upset over the death of Tula and the revelation that Aquaman hid his true parentage from him, has betrayed the team and joined his father, Black Manta.