This is episode 21 of 55 of Retired, Not Defeated. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The middle of the season, where the conflict escalates.
On his last day, veteran electrician Yang Guofu finds that apprentice Ma Tao's shortcuts caused a blackout. Slandered and forced to retire, Yang later solves Qingshan Group's grid crisis that stumped US experts. He is rehired with high pay as international firms seek his patents.