简介：Withoutwarning,millionsofmysteriousalien"doors"suddenlyappeararoundtheglobe.Inarushtodeterminethereasonfortheirarrival,mankindmustworktogethertounderstandthepurposeofthesecosmicanomalies.Bizarreincidencesoccurringaroundthesentientdoorsleadshumanitytoquestiontheirownexistenceandanalteredrealityastheyattempttoenterthem.
