When Malcolm is robbed and won't reveal the thief, Calvin and Dave team up to crack the case of the missing sneakers; Tina takes a unique approach to teaching Gemma self-defense.

Calvin reluctantly invites Dave to join his guys' night at home with Malcolm and Marty; Gemma and Tina take their first girls' trip to Vegas and find themselves unexpectedly in the spotlight.

When Dave and Gemma face a devastating loss, Calvin and Tina offer emotional support and reflect on a period that tested their own family,

When a water pipe bursts at the Johnsons’ home, Calvin reluctantly agrees to help Dave repair the damage. Also, Gemma discovers a surprising secret about her new neighbor, Tina.

Dave gives Calvin a spare key to the Johnsons' house in case of an emergency and is pleasantly surprised when the gesture is reciprocated - or so he thinks.

Unexpected revelations are in the cards during the Johnsons' first game night with the Butlers; Gemma is prompted to rectify a past wrong; Malcolm makes a play for a fresh start with his father, Calvin.

Tina gets carried away when she tries to help Gemma ace her first fundraiser as school principal; Dave tries to help Calvin win a special silent auction prize for his mom.

When Dave and Gemma's elaborate plans for Grover's 7th birthday party go awry, Malcolm and Marty come to the rescue. Also, Calvin’s choice of gift winds up sending one person to the hospital.

When Gemma has her car repaired at Calvin’s shop, Tina insists she doesn’t need to pay for the work, to Calvin’s consternation. Also, Malcolm and Marty find themselves on the same dating app and vying for the same woman’s attention.

When Gemma decides to fire a teacher at her school, she’s unprepared for the aftermath. Also, Calvin gets a surprise when he faces off with his newspaper carrier.

When Calvin and Dave’s college basketball teams go head to head, Dave surprises the Butlers with tickets to the game and also invites one of his best friends from Michigan, Logan #2, who reveals to Calvin surprising new details about Dave.

Dave is thrilled when Calvin invites him golfing, confident that it represents progress in their relationship, but Calvin may have another motive. Also, Gemma and Tina team up to pull off an unforgettable surprise for Malcolm, Marty and Grover

After Calvin enjoys attending a hockey game with Dave, Malcolm and Marty wonder if their neighbor is rubbing off too much on their dad; Tina decides to enjoy the perks that come with her "stardom" when she's mistaken for an A-list celebrity.

When Grover gets into a fight with a bully at school, Gemma is torn between her role as principal and wanting to protect her son; Calvin encourages Marty to stand up to his own bully, only to be shocked when he learns who it is.

As Calvin and Tina near a milestone anniversary, Dave and Gemma decide to help the Butlers have the wedding they missed out on the first time around. Also, Malcolm and Marty prepare an unforgettable performance for their parents’ special occasion.

With Calvin down a teammate for his annual bowling championship, Dave offers to fill in and soon finds his mediation skills put to the test when he meets the competition: Calvin’s arch-rivals, the Pink Ladies. Also, Gemma and Tina dare to face off against each other for the top ranking in an arcade game.

When Calvin receives a surprise birthday gift involving his father, Dave suggests they spend the day celebrating in a way that honours the late Butler patriarch. Also, an unexpected development changes the Johnsons’ lives forever.

As Halloween draws near, Calvin tries to determine what's behind the sudden strange occurrences at the Butlers' house; Gemma and Tina question if their days of sexy costumes should be behind them.

When Dave accidentally knocks out the Butlers' power during a heat wave, Calvin and Tina spend the night at the Johnsons' home. Malcolm has some fun at Marty's expense when he crashes at his little brother's refurbished apartment.

The Butlers and Johnsons decide to go on a double-date and everyone gets more than they bargained for at a new restaurant. Grover invites Malcolm and Marty to be the first guests on his new podcast.

When Gemma sets a reluctant Malcolm up on a blind date with a teacher at her school, she discovers new details about the origins of her relationship with Dave. Also, Marty helps Calvin and Tina plan for their future

Dave and Tina discover a common bond when they attend a concert together. Gemma seeks the Butlers' help when an unwelcome visitor takes up residence in the Johnson home.

When the Johnsons' Christmas present for Grover is stolen, Calvin and Dave team up to recover the gift in time for the holiday; a nostalgic Tina tries to get into the Christmas spirit by reviving traditions from when Malcolm and Marty were kids.

A surprise delivery prompts Dave and Gemma, as well as Calvin and Tina, to examine the power dynamics in their respective relationships.

Calvin and Dave embark on their first road trip together to a classic car show, only to hit an unexpected roadblock that tests their friendship. Also, while their husbands are away, Tina and Gemma decide to take home repairs at the Butlers' into their own hands.