The plot follows Egon Spengler's estranged daughter Callie and her children Phoebe and Trevor inheriting his Oklahoma farm, uncovering his secret battle against Gozer, and teaming with the returning original Ghostbusters to defeat the threat. Core themes of family legacy, abandonment, and courage drive the narrative without identity politics, systemic critiques, or lecture moments.

Director Jason Reitman explicitly positioned the film as a nostalgic return to the 1984 originals, avoiding the 2016 reboot's approach. New original characters such as Phoebe, Trevor, Callie, Podcast, and Lucky anchor the story as fresh additions rather than alterations to established figures. Bill Murray reprises his unchanged role as Peter Venkman in a supporting capacity alongside Aykroyd as Stantz and Hudson as Zeddemore.

Reception highlights the absence of progressive messaging, aligning with the director's stated intent to deliver traditional storytelling focused on courage, forgiveness, and honoring the past. Casting evidence: Casting research is incomplete or contains unresolved comparisons; overall casting fidelity has not been established. Documented credits include Mckenna Grace as Phoebe Spengler; Finn Wolfhard as Trevor Spengler; Bill Murray as Peter Venkman.