Unicron reappears in the sequel series, "", set five years after the events of "Predacons Rising". Although the majority of Unicron's Anti-Spark was safely imprisoned in the AllSpark container, a remnant of the Anti-Spark still exists with Unicron's original body at the Earth's core. When The Megatronus is freed and brought to Earth, he uses a spark-merging staff to extract the remnant from beneath the Earth, intending to merge the Anti-Spark and the AllSpark together to destroy both Earth and Cybertron. When the staff is broken before it can fully draw in the AllSpark, the Anti-Spark remnant returns to the Earth's core.