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We present closed-form solutions for plunging geodesics in the extended Kerrspacetime using Boyer-Lindquist coordinates. Our solutions directly solve forthe dynamics of generic timelike plunges, we also specialise to the case oftest particles plunging from a precessing innermost stable circular orbit(ISSO). We find these solutions in the form of elementary and Jacobi ellipticfunctions parameterized by Mino time. In particular, we demonstrate thatsolutions for the ISSO case can be determined almost entirely in terms ofelementary functions, depending only on the spin parameter of the black holeand the radius of the ISSO. This extends recent work on the case of equatorialplunges from the innermost stable circular orbit. Furthermore, we introduce anew equation that characterizes the radial inflow from the ISSO to the horizon,taking into account the inclination. For ease of application, our results havebeen implemented in the KerrGeodesics package in the Black Hole PerturbationToolkit.

Kerr-fully Diving into the Abyss: Analytic Solutions to Plunging Geodesics in Kerr