Complex sentence: Exodus and his new Acolytes attack the S.H.I.E.L.D. Helicarrier that is above the Xavier Institute to capture and use Cable to reveal how many mutant births would occur in the future.
Split into simpler sentences: Exodus and his new Acolytes attack the S.H.I.E.L.D. Helicarrier that is above the Xavier Institute. Their intent is to capture and use Cable to reveal how many mutant births would occur in the future.