"These are defining issues of our time. And yet, these stories are often told through facts and figures- not always in ways that people can truly connect with. That is where storytelling has the power to make a difference.

"Our goal was to make these stories feel accessible, intimate and real, especially for younger audiences, while staying grounded in scientific truth."

Channa believes Zhang is the right person to guide the journey because of his engineering mindset, which allows him to reconnect with the logic and natural curiosity behind these subjects.

"Through that journey, science becomes personal. Engineering becomes relatable. And the future becomes something audiences can feel part of," Channa says.

The documentary brought Zhang to his home province of Jiangsu, where he visited an offshore wind power cluster, a pumped-storage hydroelectric plant, and an ecological dredging platform on Taihu Lake to get hands-on experience in different jobs, including as a wind farm operation and maintenance engineer, dredging boat captain, fisherman, waste collector, and eco-agricultural technician.

He used language familiar to young audiences to explain electricity-related terms.

For instance, he described a pumped-storage hydroelectric plant- which uses surplus electricity to pump water to an upper reservoir and then releases it to generate power during peak demand — as a "giant power bank".

Zhang believes being a "translator" in the documentary can help more people understand what energy transition and low-carbon living really mean.

In the first episode, he lived and ate alongside electrical engineers at the offshore booster station, helping them carry out routine inspections and maintenance work on the station's power equipment.

Zhang observed that when the cameras were rolling, the engineers tended to speak in formal, academic terms. But once the crew paused, they would open up like family. And it was in those off-camera moments that he truly felt their passion for the job.

"I could feel how proud they are of what they do," Zhang says.

"They also want more young people to join them, but too many are chasing trendy majors and jobs instead. This documentary should show that this career has a real future and that it's truly making a difference for the environment."

Already known for a number of highly popular drama series, Zhang has been widely discussed for his good looks as a rising heartthrob in the entertainment industry.

"Because many people got to know me through my characters, and then started following me as a person, I want to make good use of that attention and influence to bring more positive things to everyone," he says.

"I hope that while following me, audiences can also see the country's energy transition, make small changes to their own lifestyles, and contribute to the progress of our energy transformation."

He also hopes more people can see his truest version. He describes this documentary as bringing him back to the world of Zhang Jiawei.

"In the past few years of becoming Zhang Linghe, I gradually drifted away from Zhang Jiawei, the young man surrounded by kind people, who was always willing to express his innermost, truest feelings."

He says that after becoming a star, he insulated himself from his old life, but this documentary journey brought him back to his hometown, doing work he was once familiar with, and most importantly, being surrounded by a group of very real people.

"The journey made me more willing to open up."

He once chose to become an actor partly out of a desire for freshness as he didn't want a conventional nine-to-five job. Acting allows him to live as a new character every few months, collaborating with different actors and directors.

However, by seeing and experiencing the daily lives of people doing different jobs throughout the journey, he has developed a completely different perspective.

"What they're doing is truly changing people's lives, changing the future of our country, and changing their own futures," he says.

"Sometimes, whether something feels fresh or not really depends on whether you can find something challenging in the repetitive work."