The conclusion of the 1975 Teshuva Drasha:

0:00-2:00 Teshuva - who returns to whom?
2:01-4:39 Hashem knocks on our door
4:40-8:10 Reinterpreting Rabbi Akiva's Homily
8:11-10:03 A father and his alienated son
10:04-11:45 The Haftarah of a Taanis Tzibur
11:46-23:48 The Haftarah of Yom Kippur
23:49-30:21 The gift of Medinat Yisrael to an undeserving generation

..with great appreciation to R. Yehudah DovBer Zirkind for his help with subtitling from the Yiddish