Structural engineer Allyn Kilsheimer is in Surfside, Florida, to investigate what happened to make the condo building collapse after 40 years. He investigated the Pentagon after 9/11 as well as the World Trade Center and Oklahoma City bombings. CNBC’s Kate Rogers reports on plant-based fish, a new movement that’s growing amid overfishing and increasing climate concerns. Meteorologist Bill Karins reports on the heatwave that’s hammering the country right now and says some relief could be on the way for folks in the Northeast. CNBC’s Meg Tirrell discusses the need for masks and booster shots to battle the new Covid delta variant. Plus, Yankee fan Gwen Goldman finally got to live out her childhood dream of being a batgirl for the Yankees, 60 years after she was told no by the team’s management.