This week's rally was largely based on macro-economic forces, Jim Cramer told his Mad Money viewers Friday. But starting next week, earnings season kicks into high gear and promises to be a wild ride for investors.

Cramer's game plan for next week starts off with Citigroup (C) - Get Report , an Action Alerts PLUS holding. He said after the stock's four months of awful performance, not even the company's buyback can save them.

Next, on Tuesday, it's more financial earnings, this time from JPMorgan Chase (JPM) - Get Report and Wells Fargo (WFC) - Get Report . Cramer felt either of these names could rally on any good news. UnitedHealth (UNH) - Get Report has a different problem, as this stock's been doing so well, it may be hard to top expectations. Also Tuesday, United Continental (UAL) - Get Report  reports, and Cramer felt if any airline can buck the downward trend, it's this one.

Wednesday brings earnings from Goldman Sachs (GS) - Get Report , Bank of America (BAC) - Get Report and railroad CSX (CSX) - Get Report . Cramer was bullish on all three, especially if Goldman can quantify the potential damage from their Malaysian operations.

Cramer said to buy Morgan Stanley (MS) - Get Report when it reports on Thursday, along with American Express (AXP) - Get Report . He liked Netflix (NFLX) - Get Report , but not after the stock's 26% run so far this year.

Finally, on Friday, Cramer said he's not a fan of Schlumberger (SLB) - Get Report , nor VF Corp (VFC) - Get Report , but would be a buyer of VF rival PVH (PVH) - Get Report .

Cramer and the AAP are adding to their position in CVS Health (CVS) - Get Report . Find out what they're telling their investment club members and get in on the conversation with a free trial subscription to Action Alerts PLUS.

Trade War Worries 

The Chinese consumer is starting to take sides in the ongoing trade war, and that means there are clear winners and losers. Cramer said so far it looks like apparel remains strong. Both Nike (NKE) - Get Report and Lululemon Athletica (LULU) - Get Report have yet to see a slowdown.

Meanwhile, analysts worry that Starbucks (SBUX) - Get Report may see increased competition from local brands.

We already know that Apple (AAPL) - Get Report iPhone sales are slowing, but Deere & Company (DE) - Get Report remains strong, despite the trade war and the government shutdown delaying farm subsidies here in the U.S.

But perhaps the biggest potential winners from the end of the trade war could be American Express (AXP) - Get Report , which looks to do business in China without a partner, and Boeing (BA) - Get Report , which could see a pickup in new plane orders from China.

Over on Real Money, Cramer takes a closer look at opportunities and risks in the retail sector. Get more of his insights with a free trial subscription to Real Money.

Is Gold Shining?

The markets may be rallying, but we're not out of the woods yet, Cramer cautioned viewers. All it would take is one errant interview with Federal Reserve Chair Jay Powell or an escalation of the trade war to send the markets reeling again. That's why investors need to stay diversified -- and that means gold.

Gold acts as insurance for your portfolio. Even with the price of the precious metal essentially rangebound for the past several years, gold still spikes every time there's fear in the markets. That's why the price of gold is up since October, while stocks are markedly lower.

Cramer said he doesn't advise owning gold itself, as gold bars are expensive and gold coins have exceedingly high markups and are not very liquid when it comes time to sell. He continued to recommend the SPDR Gold Shares (GLD) - Get Report ETF, along with Barrick Gold (GOLD) - Get Report , which recently acquired long-time Cramer favorite Randgold Resources. 

Off the Tape

In his "Off The Tape" segment, Cramer sat down with Lior Ron, head of Uber Freight, the logistics side of Uber, which aims to tackle rising freight costs using technology.

Ron said that while just about every other production cost has declined over the years, freight costs have only risen. Uber aims to fix this by using technology to remove friction. The company's app pairs drivers with loads that need to be moved and allows drivers to book opportunities with just a few taps.

Despite only being in operation for 20 months, Ron said they're already seeing a decline in shipping costs as transportation becomes more efficient. This is especially true for heavier items, like food and water.

Ron added that technology is a great equalizer. He said many minority drivers didn't have access to opportunities in the past, but with Uber Freight, they can instantly be matched with work that needs to be done.

No-Huddle Offense

In his "No-Huddle Offense" segment, Cramer offered up his takeaways after spending a week in San Francisco talking to both tech and healthcare CEOs.

Healthcare is getting more confusing, he said, and it's starting to look like too many companies are chasing anti-cancer treatments. The cancer market is quickly becoming over-saturated. But outside of cancer treatments, Cramer was bullish on many of the companies he interviewed this week, including Novartis (NVS) - Get Report , Allergan (AGN) - Get Report , Bausch Health (BHC) - Get Report and DexCom (DXCM) - Get Report .

Cramer said the tech sector seems to be roaring back to life after crashing late last year. He felt Intel (INTC) - Get Report told a great story, as did Salesforce.com (CRM) - Get Report . Tonight's interview with Uber Freight was an eye-opener, as was Cramer's interview with Apple's Tim Cook. Apple could be the biggest winner, he said, as it combines both tech and healthcare. 

Lightning Round

In the Lightning Round, Cramer was bullish on McCormick (MKC) - Get Report , BP (BP) - Get Report and Spotify (SPOT) - Get Report .

Cramer was bearish on JM Smucker (SJM) - Get Report , Energy Transfer (ET) - Get Report , Wingstop (WING) - Get Report , Weight Watchers (WTW) - Get Report , Lockheed Martin (LMT) - Get Report , Two Harbors (TWO) - Get Report and Corning (GLW) - Get Report .

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At the time of publication, Cramer's Action Alerts PLUS had a position in CVS, C, JPM, UNH, GS, SLB, AAPL, BP.