He's just escaped from one of the world's most brutal regimes. Now, he decides to tunnel back in. It's summer, 1962, and Joachim Rudolph, a student, is digging a tunnel under the Berlin Wall. Waiting on the other side in East Berlin - dozens of men, women, and children; all willing to risk everything to escape. From the award-winning creator of the acclaimed BBC Radio 4 podcast, 'Tunnel 29' is the true story of the most remarkable escape tunnel dug under the Berlin Wall.