黑洞拦截

Scientistsatasecretundergroundcomplexhavefoundawaytotraveltoanotherdimension.Threedimension-travellersarethefirsttogothroughthegate-butaresoonattackedbysomethingthatinterruptsthecommunicationwithEarth.Thishorriblesomethingusesthegatetotravelbacktotheundergroundcomplex.Mostofthestaffareevacuated,exceptfourheavily-armedm...