While in Norfolk fishing for tench, Bob tries to impress Paul with his childhood fishing rod - and fails. They share nostalgia for their younger years and reveal how they recently came face to face with their own mortality. After a brief respite in a local brewery, they reluctantly camp down in yurts before fishing again the next day where the elusive tench seems to evade them until the very last minute.

In Hay on Wye, Paul and Bob fish for the mighty Barbel. Passing a graveyard they muse about the future and chat to a local vicar about death and their own funerals. To lighten the mood, back in their wooden fishing cabin, Bob promises Paul a very special treat if they are successful in their angling efforts.

In the beautiful Monsal Valley in Derbyshire, Paul teaches Bob how to fly-fish for wild rainbow trout. While fishing, they discuss their humble beginnings in show business and have a good gossip about their contemporaries. Bob cooks Paul his very personal recipe of 'tuna Melanie' on the river bank, and it soon transpires his cooking is a lot more successful than his fishing.

Paul and Bob fish the beautiful river Wensum in search of the equally beautifully roach. Struggling up and down the riverbanks, they realise how age is starting to take its toll on their physicality. But Bob has a plan to help Paul recapture his youth. They stay overnight in a disused train station and visit the local pub with Paul showing off his new look, courtesy of Bob. They decide to challenge each other to a fishing competition where the winner gets a very special culinary treat, and be warned, their dinner table conversation is not for the faint hearted.

Paul fishes at Christchurch's quintessential Bridge Pool in Dorset, hoping to catch sea trout. Bob arrives late but redeems himself by hooking the first fish of the day. After a glorious morning Paul persuades Bob to charter a boat out to sea in search of Sea Bass. Bob has a history of sea sickness and is not keen but eventually they venture out to the Needles where Paul makes an incredible catch. The fish is too big for Bob to handle so they head off to a local restaurant to prepare it. Bob performs a small cameo as an irritating waiter.

In this final episode, Paul and Bob decide to try and catch a legendary pike, which is perhaps not the best idea for two men of a certain age with heart problems. In the cosy cottage where they are staying, they invite a consultant cardiologist for dinner to talk about their medical past and their future, gaining tips on how to live the most healthy life possible. Facing the future, they write a eulogy for each other as the sun sets on their final fishing expedition.