Mariah's World, We Belong Together

Mariah plans her upcoming nuptials to billionaire James Packer and the launch of her first world tour in a decade simultaneously, which presents a dilemma.

A heated argument erupts between two performers and Mariah is pulled into the middle of the conflict.

Mimi tries to win back her audience but drama strikes when her former employees leak information to the press.

A festive Mariah makes special memories with her children and shares some details about her past. Meanwhile, Stella is on the hunt for Molly.

Tanaka struggles to keep his feelings platonic within close quarters. But his moment in the sun with Mimi may be in jeopardy when he suffers from an unexpected injury that could send him home.

When another dancer gets injured, Mariah starts to feel it's time to simplify the show, but Anthony is against the idea and now he must train two new dancers quickly.

As the European leg of the world tour concludes, emotions peak, and Mariah is relieved to find out her backup singer and best friend MaryAnne finally has forgiven Anthony.

It's bittersweet for Mariah to say goodbye to her road family.And when her upcoming wedding plans fall apart, she decides to take a leap of faith and follow her heart.