In the mashup nobody saw coming, the Teenage Mutant Ninja Turtles will team up with the Ghostbusters in an upcoming 4-issue miniseries.

Both franchises turn 30 this year, so IDW sees it as an anniversary for both.

According to Nerdist, the plot will be as follows:

The four-issue miniseries will take the Turtles from their own New York into an alternate version with a major ghost problem. It’s here that they meet the Ghostbusters and the octet deals with the mysterious, ghostly thing that the Turtles accidentally dragged with them from their dimension.

The first issue will come out in October and the miniseries will be written by Tom Waltz and Erik Burnham.