Each season of “Industry” has moved further and further from the hothouse of the trading floor, and the latest amounts to a gut renovation: now that the show’s creators, Mickey Down and Konrad Kay, have blown up Pierpoint, they’ve also shifted their focus more decisively to the corridors of power. The new season, reflecting the current state of affairs in the U.K., finds a feeble Labour government in charge and the far-right Reform Party waiting in the wings. That sense of instability extends to the financial sector, where underregulated fintech startups aim to supplant traditional banks. Whitney (Max Minghella), the C.F.O. of one such startup, Tender, decides that his co-founder doesn’t have what it takes to “mature” the business. When Whitney turns to Yasmin, a “dear friend,” to recruit her husband as Tender’s replacement C.E.O., despite the well-publicized implosion of Henry’s last company, the couple—human embodiments of the Dunning-Kruger effect—are slow to spot the strings that come with the job. And they are not remotely prepared when Harper’s firm puts its full weight behind burying them.