The only storylines that Nigel ever gets are intended to make him look a figure of fun and his wife even more stuck up (if that is possible - she should change her name to Lizzie snobby snob snob).

The story of the excavation of the ha ha at Lower Loxley has been
signposted

for weeks as an opportunity for 'hilarious' behaviour on Nigel's
part. In his eagerness to get the project under way and in the absence of Eddie Grundy (who is clearly capable of undertaking any job - milking cattle, hedge laying, constructing houses, bricklaying, cider making - the list is endless) as digger driver he promptly reversed the JCB into the gift shop thus allowing the opportunity for Kathy's planned re-arrangement of the wares to be implemented.
Meanwhile Brian has plans. He's going to play Debbie off against Adam, sell the farm and buy somewhere in South Africa to be close to Kate and then put the receipts into trust for lovechild Rory and mum Siobahn who clearly is incapable of properly looking after their son.
Ed and Oliver have embarked on their trip to Paris whilst Mike fumes about the swede feed and the milk flavouring.
Meanwhile Tom & Brenda have solved their housing problem - they've been rented a cottage by Jennifer. Rural homelessness is easily solved clearly. Although is this the same cottage that is rented for holiday lets (surely more profitable) and used by the strawberry pickers (or are they all put in caravans and tents?)