What's behind the turmoil in the markets? No, it's not North Korea, Jim Cramer told his Mad Money viewers Wednesday, it's the millennials, the members of that powerful younger generation that every company is desperate to figure out.

Everyone wants the millennials for customers, Cramer explained, which is why Clorox (CLX) spends nearly half of its advertising budget online in hopes of reaching them. It's also why Walt Disney (DIS) is upending its traditional business models, betting that it can have some millennial customers online or likely none of them on cable.

Cramer said it was inevitable that Disney would opt to start its own streaming services for ESPN this year and for the rest of its catalog in 2018, after it ends its partnership with Netflix (NFLX) . The millennials hate cable TV, so if Disney's content isn't readily available online, it might as well not exist at all.

Disney is not the only millennial stock however, as Cramer noted that Estee Lauder (EL) is perfect for the selfie generation, as is spicemaker McCormick (MKC) . Cramer also gave the nod to Allergan (AGN) , who appeared on last night's show, as well as all of the usual millennial subjects, Nvidia (NVDA) , Constellation Brands (STZ) , Domino's Pizza (DPZ) and of course, Amazon (AMZN) .

What do the millennials hate besides the mall? Cramer said they prefer Uber and Lyft and that might start putting a crimp in auto sales. Millennials want electric and only Tesla (TSLA) has been able to deliver on that front.

Make Money, Not War

How should investors prepare for increased tensions with North Korea? Unfortunately, there may not be many good options for dealing with the rogue nation, but when it comes to your portfolio, Cramer offered up the same advice he gives for any crisis.

First, raise cash. In this case, 10% to 20% of your portfolio might be warranted so you can have the cash you need to buy any opportunities that present themselves. Second, buy some gold. Cramer said he still recommends buying gold bullion, as long as you don't keep it at home, or the SPDR Gold Shares (GLD) or Randgold Resources (GOLD) .

Finally, Cramer said investors can look towards the defense stocks. Lockheed Martin (LMT) remained his favorite, followed by Raytheon (RTN) and Northrop Grumman (NOC) .

Hopefully, this crisis, like so many before it, can be resolved without the need for war, in which case investors can enjoy what will certainly be a post-crisis rally.

Don't Underestimate Boeing 

What's the best stock in the Dow Jones Industrial Average? No, it's not Apple, which is up 39%. It's Boeing (BA) , which has rocketed up over 50% for the year. How did the analysts miss Boeing? Cramer explained.

Boeing has become a master at "UPOD," Cramer explained, under-promise and over-deliver. The company's new CEO, Dennis Muleinburg, is constantly being underestimated. That's how the company was able to surprise Wall Street with a 25-cents-a-share earnings beat that prompted a total of five analyst upgrades.

Many analysts were too focused on a slowing China to take notice of Boeing's aggressive cost cuts, which included thousands of layoffs and other initiatives. Boeing has been able to raise its estimates and reduce its cyclicality.

Shares of Boeing may seem pricey at 22 times earnings, Cramer concluded, but that's only if the estimates are correct. If estimates are too low, then Boeing shares may have even more room to run.

Cramer and the AAP team are downgrading Wells Fargo (WFC) . Find out what they're telling their investment club members now and get in on the conversation with a free trial subscription to Action Alerts PLUS.

Executive Decision: Tableau Software

For his "Executive Decision" segment, Cramer spoke with Adam Selipsky, president and CEO of Tableau Software (DATA) , the data analytics firm with shares that are up 65% in 2017.

Selipsky said that Tableau is making a big pivot to subscription-based services and customers are adopting them even faster than anticipated. Internet and digital based companies are generating more data than ever and Tableau's goal is to allow anyone to ask questions of that data.

To that end, Tableau recent acquired ClearGraph, a natural language processing company that will allow Tableau users to ask sophisticated yet intuitive questions and receive easy-to-understand results.

Cramer said the turnaround at Tableau this year has been truly remarkable.

Lightning Round

In the Lightning Round, Cramer was bullish on Dave and Busters (PLAY) , Hasbro (HAS) , Logitech International (LOGI) and Tyson Foods (TSN) .

Cramer was bearish on Williams-Sonoma (WSM) , Mattel (MAT) , Sanderson Farms (SAFM) and Patterson-UTI Energy (PTEN) .

Executive Decision: Opko Health

In his second "Executive Decision" segment, Cramer spoke with Dr. Phillip Frost, chairman and CEO of Opko Health (OPK) , the biotech company with shares that are off 31% for the year, but were able to rally 4.7% today on better-than-expected earnings.

Frost explained that the regulatory investigation his company disclosed earlier this year is routine for the biotech industry. After a comprehensive audit, no irregularities were found.

Frost also provided an update on his company's 4K test for prostate cancer. He said the test is terrific for African-American men who have traditionally not been screened early enough. Opko is now processing 250 to 300 tests a day and the company plans to launch a nationwide advertising campaign later this year.

Cramer called Opko a company with a lot going for them, and an inexpensive stock.

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At the time of publication, Cramer's Action Alerts PLUS had a position in WFC, AGN.