In the series finale of PINDROP, National Science Foundation Official Paul Sheppard discusses the end of the world -- Antarctica -- and why it is crucial for science despite the extremities faced by the researchers living there. Plus the season concludes with Ian Kearns, Kate McKown, Wajeeha Amir, Francisco "A.J." Camacho, Taylor McKinnie, and Jacob Schwartz on a PINDROP roundtable to reflect on the past year of programming.