This reminded me a little at the start of "The Hunters" (2013) as some pals discover that the basement of one of their family homes is really a den of technology and superhero-style power packs. It's whilst "Charlie" (Walker Scobell) and his gang of increasingly incredulous chums are exploring that they realise they are not alone in searching for an unique power source that could, of course, change the whole world order. Soon, the two teams are at loggerheads in their race to find it. Can the youngsters fend off their much more aggressive (and grown up) antagonists led by "Argon" (Michael Peña...