Season 1

Series Premiere

1x01 The Greatest Tunnel Ever Built

• no air date — 42m

1x02 What Lies Beneath

• no air date — 42m

1x03 Punching Through

• no air date — 42m

1x04 Leaders Among Hogs

• no air date — 42m

1x05 It Is What It Is

• no air date — 42m

1x06 The End of an Era

• no air date — 42m

1x07 3745 Feet

• no air date — 42m

1x08 Job Security

• no air date — 42m

1x09 Meltdown

• no air date — 42m

1x10 The Roadheader

• no air date — 42m

1x11 A Band of Brothers

• no air date — 42m

1x12 Looking Forward

• no air date — 42m