Kamal Mehra is a businessman who owns AyKa, a company on the verge of bankruptcy. He has a troubled relationship with his wife, Neelam and with his two children, Ayesha and Kabir. The Mehra family also includes their pet dog Pluto. Ayesha owns a successful business but is unhappy with her marriage to Manav Sangha, a controlling, narcissistic husband who together with his mother Smita, hates Ayesha's family. Kabir unwillingly participates in the family business but he yearns to become a pilot. Kamal and Neelam invite their family and friends for a ten-day cruise across the Mediterranean to celebrate their 30th wedding anniversary. Their guests include the Sood family, consisting of businessman Lalit Sood, his wife Naina and their daughter Noori. Kamal and Neelam plan to get Kabir married to Noori in exchange for Lalit investing in Ayka.
The Mehra family and all of their guests board the cruise ship in Italy. Kabir meets Farah, a dancer, and begins a romantic relationship with her. Noori is in love with Rana Khanna, the son of Vinod and Vandana. The Khannas, however, are sworn enemies of the Soods, so Kabir and Noori decide to manipulate their parents into believing they are dating each other while continuing with their respective relationships. Ayesha considers divorcing her husband, whom she believes is incompatible with her. Her parents are staunchly against it because they believe it will dishonor the family. Meanwhile, Sunny Gill, the son of Kamal's manager Amrish, arrives on the ship. It is revealed that Sunny and Ayesha dated each other as teenagers. Kamal, who was unhappy with their relationship, arranged and paid for Sunny to study abroad to separate him from Ayesha. Ayesha realizes that she still harbors feelings for Sunny, who is now a successful journalist. Unlike Ayesha's husband, Sunny appreciates her strong personality and believes in female empowerment.
Neelam sees Kamal flirting with one of the female guests and wonders why she did not divorce him despite his past infidelities. Ayesha confronts Sunny about his sudden departure and kisses him, which she later regrets because she is married. Meanwhile, Farah hears that Kabir is planning to marry Noori and ends their relationship. Elsewhere, Kamal sees Noori making out with Rana and has a fit, after which he is rushed to the onboard emergency room. At the clinic, Kamal tells Kabir he saw Noori with Rana and asks him to end his relationship with her. Kabir tells his family he knew about the couple's relationship and that he is in love with Farah. He also tells them he intends to leave the family business and asks them to consider Ayesha, who is actually interested in business. He also tries to persuade them to let her proceed with her divorce as she is not happy with the marriage, but Kamal and Neelam still refuse, believing marriages are lifelong commitments. Infuriated, Kabir tells Kamal that he, Neelam and Ayesha were all aware of his adultery and that Neelam has been bearing his infidelities and suffering silently to save the family. Kamal asks Neelam why she had not divorced him; she reveals she had no choice because her family would not accept her back due to their fear of dishonor. Kamal realizes his mistake, asks for Neelam's forgiveness and consoles her. Later, while trying to reconcile Manav and Ayesha, Kamal sees how Manav mistreats his daughter and asks him and his mother to leave. He agrees to the divorce and asks Ayesha for forgiveness.
Kabir tries to persuade Farah to forgive him for lying to her, but she is dismissed from her job for being involved with a passenger and is told to leave the ship. Kabir finds out about her dismissal after the ship has set sail from the port where it had docked for some time. Seeing no other option, Kabir, aided by Sunny, jumps off the ship, hoping his family will rescue him and help him get ashore. Kamal, Neelam, Ayesha and their dog Pluto eventually find a lifeboat to rescue him. While leaving, Ayesha asks Sunny if he would wait for her, to which he replies "forever". The family rescue Kabir and head towards the shore while being chased by the ship's crew. The Mehra family is seen happy in each other's presence for the first time.