As their adventure nears its end, Bill still finds time to terrify Tom with his driving. A stormy round with NFL star Jason Kelce brings refuge in a stone shelter on the 7th, complete with pints and sausage rolls. In Dublin, Bill puts Tom in the spotlight for a change, before the pair reach the Giant's Causeway and reflect on a journey that became about far more than golf.

After weeks of travelling, filming and constant attention, life on the road is taking its toll on Bill. With brothers Joel and Johnny along for the ride, family offers an escape from fame. The Murrays reflect on losing their father young, and how caddying and golf bound nine siblings together. By the time they reach Cruit Island in Donegal, family reflection gives way to golfing rivalry.

As Bill's 75th birthday approaches, brother Joel joins the adventure, bringing some Murray family rivalry to the golf course. Comedian Joanne McNally attempts her first ever round, while a bouncing boat trip to the Cliffs of Moher brings more unexpected encounters. Then friends and familiar faces gather to celebrate a milestone birthday – and a reflective Bill looks ahead to what might come next.

After a hair-raising drive across the Conor Pass and a spot of seaside silliness hitting golf balls into the ocean, Bill bids farewell to Chris O'Dowd. In County Clare, Bill and Tom's attempt to sneak unnoticed into a hurling match goes awry, before an emotional reunion recalls an unforgettable act of kindness. Then, a chance invitation in Ballybunion leads to a freezing Atlantic challenge.

Irish film star Chris O'Dowd joins Bill Murray and his friend Tom Coyne for a lively round of golf, with enthusiasm occasionally outstripping ability. Away from the fairways, a traditional rambling house takes Bill outside his comfort zone as he explores Ireland's rich storytelling traditions. Later, in a packed Irish pub, the music starts – and staying on the sidelines proves impossible.

Hollywood legend Bill Murray begins a journey around Ireland, combining golf with a search for his Irish roots. But travelling with Bill rarely goes to plan. In Kinsale, chance encounters turn a simple walk into an adventure, while friend and golf writer Tom Coyne tries to keep things on track. Golf brought Bill to Ireland, but the best moments often happen far from the course.