![](https://image.tmdb.org/t/p/w342/ygrWob9FuIsXLaRKOiqJQi2yIMg.jpg)
Pat and Graham take up diving and discover a large wreck, which they hope to salvage. While investigating the old ship, Graham becomes trapped in the hull by a piece of shifting equipment. With his oxygen supply depleted, Graham's only hope for survival is the quick and heroic action of his best friend.
![](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![](https://image.tmdb.org/t/p/w300/f9jzpch8hc7VM2RpyMMF741MZCW.jpg)
![](https://image.tmdb.org/t/p/w300/5FQedgC453usxnGsjgBoUDRzaxV.jpg)
Other episodes for this season
![Pedal Pushers](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Twice the Pleasure](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Over The Hill](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Father's Day](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Poster Boy](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Tricky Moves](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Alekos](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Unlikely Allies](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Kiss of the Dragon](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Trial Balloon](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Not Just Another Pretty Face](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Plain Sailing](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Free Ascent](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Homme Fatale](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Beyond the Limit](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![By the Pricking of My Thumbs](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Coming Home Again (1)](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)
![Coming Home Again (2)](https://image.tmdb.org/t/p/w300/pWn8BvyVLe1Jo10AUDXXgl2HtCT.jpg)