Who you gonna call? Ghostbusters! That's the iconic phrase from the 1984 film "Ghostbusters" and it turns out that even in 2020, the Ghostbusters still answer the call -- Josh Gad's call, that is.

In a teaser posted Wednesday, Gad revealed that he gathered the original movie cast and crew together for an episode of his YouTube series "Reunited Apart."

The new episode, which airs on Monday, June 15, has confirmed appearances from Bill Murray, Dan Aykroyd, Ernie Hudson, Sigourney Weaver, and Annie Potts, as well as, the film's director Ivan Reitman and his son, Jason Reitman.

Currently, Jason is taking the reigns directing the upcoming film "Ghostbusters: Afterlife," which will see the original stars reprise their roles with the exception of Harold Ramis, who died after an extensive battle with an autoimmune disease in 2014. Ramis portrayed Dr. Egon Spengler and co-wrote the first two "Ghostbusters" movies.

Based on the preview, Monday's episode of "Reunited Apart" is bound to be full of nostalgia, unheard behind-the-scenes stories, and maybe some teasers for "Ghostbusters: Afterlife," which is scheduled to hit theatres in 2021.

And if that wasn't enough of a reason to tune in, the next installment will benefit the charity Equal Justice Initiative, which Gad explained in the video description is "an organization committed to ending mass incarceration and excessive punishment in the U.S., to challenging racial and economic justice, to protecting the most basic human rights for the most vulnerable people in American society."

So, how do you watch it? It's simple. Head to Gad's YouTube page anytime after 12 p.m. EDT on June 15 to tune in to the "Ghostbusters" installment of "Reunited Apart."

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A promo photo for “Ghostbusters II” is pictured. Columbia Pictures/Ghostbusters II