**Reunion at the Firehouse: A Ghostly Mission**
The Spengler family revisits their roots at the legendary New York City firehouse, joining forces with the original Ghostbusters. These veteran paranormal investigators have established a clandestine research facility aimed at advancing ghost-busting technology. However, their plans take a perilous turn when the unearthing of an ancient relic unleashes a malevolent entity. Now, both the seasoned and rookie Ghostbusters must unite to defend their sanctuary and prevent the world from succumbing to a catastrophic second Ice Age.
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