In the first episode, Wind, Keeley is trained to escape from a ditched helicopter before she heads 75 miles off the Yorkshire coast to see the building of the world's biggest offshore windfarm. Hornsea One has broken every record for its size and scale, with 10,000 people involved in its construction in the North Sea. Keeley meets the staff who've made it happen - but can she get to the top of one of the 174 turbines in the field?

Keeley Donovan takes a behind the scenes look at Drax near Selby, which is Britain's biggest power station. She follows engineers as they undertake a £50 million maintenance programme that'll see them move equipment weighing 300 tonnes. There's also giant boilers and turbines to refurbish as they get one of their six generating units reconnected to the National Grid.

Keeley Donovan meets the people working in the gas industry in and around the Cumbrian Coast. She travels by helicopter to the Morecambe gas field as engineers find new ways of extracting the remaining fuel supply that's been exploited for more than 35 years. Keeley also heads for the Barrow Gas Terminal where a complex network of pipes sends the gas to our homes.

Keeley Donovan meets the people working at Britain's biggest operational nuclear site at Heysham on the Lancashire coast. Heysham 1 and Heysham 2 power stations make enough electricity to power more than four million homes. Keeley follows engineers as they undertake a huge maintenance programme called an outage. But with Britain in lockdown during the coronavirus pandemic, will engineers be able to get one of the reactors back on line to provide much-needed energy to the nation?