Complex sentence: Four years later, Goku attains the power of a god and faces more challenges, defends the Earth against powerful destructive deities and travels to parallel universes to face more powerful opponents and nearly unstoppable foes.
Split into simpler sentences: Four years later, Goku attains the power of a god and faces more challenges. He defends the Earth against powerful destructive deities and travels to parallel universes to face more powerful opponents and nearly unstoppable foes.