Geordi can barely curtail his enthusiasm at being able to test out a new theory of transportation, as Worf's mother boards the Enterprise with his son and news that Worf's Earthly parents can no longer care for him.
Transporting three Ullian mind-probing historians, the Enterprise crew is stymied when some of its members fall into a coma. Deanna Troi, the first crew member to come through it, cannot recall anything surrounding the incident.
The Enterprise is on a mission to warn the human colony of an artificial paradisiac biosphere on planet Moab 4's southern colony of the approach of a massive stellar fragment, which will impact with seismic force causing a tectonic disaster. However its competent, considerate leader Aaron Conor refuses to evacuate, confident their biosphere can withstand earthquakes. He does allow a small Enterprise party to visit their society, which they believe far superior after eight generations of selective breeding which nearly eliminated the remaining human risk factors. ...
While aiding an androgynous race who lost a couple of members in an unmapped region of space, Riker falls for one of them, which can lead to trouble if detected, since the alien race does not endorse gender specificity.
Shortly after the Enterprise saves a planet from an asteroid impact by exploding it, the ship experiences strange break-downs which are ultimately attributed to an impossible to detect timely metal parasite, which will destroy it unless eliminated, so Data suggests luring it to an asteroid. Deanna Troi counsels Worf to deal with his son Alexander's authority problems by drawing up a two-ways contract on paternal and filial rights and obligations, but is still practically terrified to hear her overbearing and impulsive mother, ambassador Lwaxana, announces her own ...
On a diplomatic mission to bring Ambassador Briam and his Kryotion planet's gift to a reconciliation ceremony with its rival, even warring planet, ruled by rivaling brothers' dynasties, the Enterprise beams suspiciously cheerful Ferengi traders Par Lenor and Qol aboard just before a containment field collapse makes their ship explode. One of them brings the gift 'accidentally' out of cryostasis, to the crew's horror a live 'gift', 'metamore' (empath) Kamala, whose destiny is to vow her entire existence to a mate's happiness, but alas bestows her enchanting love not on...
Young Clara Sutter, like many girls her age, has an imaginary friend. She recently come on board with her father, an engineering officer, and hasn't yet made any real friends. Counselor Troi assures Clara's father that it's perfectly normal and he has nothing to worry about. While playing one day, Clara is shocked to see her friend Isabella suddenly appear before her. In fact, Isabella is a sentient being that has taken human form only to scout the ship and learn more about it. For Picard and the crew, determining the being's intent is key to determining the next step.
The Enterprise finds a lone Borg drone, separated from the collective, and brings him aboard. The drone begins to reassert his individuality, but his presence causes differing levels of fear and sympathy from various crew members.
A transporter malfunction, combined with a Romulan ship under stress and a damaged cloaking device, creates the illusion that Ensign Ro and Geordi are dead, but Geordi doesn't believe it to be so, and he acts accordingly.
The Enterprise stumbles upon a Dyson sphere, with a ship crashed on the outer surface. An away team finds some systems still powered up and the chief engineer from the old Enterprise, Montgomery Scott, locked in the transporter cycle.
Captain Picard, Ensign Ro, Keiko and Guinan are returning to the Enterprise aboard a shuttle craft when they encounter a deadly energy field. They are all safely beamed aboard the ship but are transformed in the process - their minds are unchanged but their bodies have resorted to those of 12 year-olds. Dr. Crusher finds that their DNA has been slightly altered but may be able to return them to their normal selves. Meanwhile, the Enterprise is on a mission to rescue a large Federation science team but come under attack by a group of rogue Ferengi.
While the crew is experiencing some much needed down time, Worf and his son go on an Old West excursion in the holodeck, where they meet several versions of Data serving as the bad guy after an experiment in Engineering goes wrong.
When Geordi is assigned to survey a new mining development with Dr. Farallon, who invented an experimental mining technology, she uses a new sophisticated robot called an Exocomp to repair a power grid.
Picard is replaced as captain of the Enterprise so he, Lt. Worf and Dr. Crusher go on a top-secret mission into Cardassian space. Meanwhile, his replacement, Captain Jellico, meets his new command with some resistance from the crew.