Ep 21. I Know That You Know

The Cosby Show season 3 episode 21, "I Know That You Know," follows the Huxtable family as they deal with the consequences of Clair finding out that Cliff's mother has been keeping a big secret from them all for years. As the title suggests, Clair already knows, but she wants her husband to come clean.

The episode begins with Clair and Cliff talking in the kitchen about his mother's recent visit. Cliff is completely oblivious to the fact that his mother, Anna Huxtable, has been keeping a secret from him and his siblings. However, Clair knows that something is up and she wants to get to the bottom of it. Clair is the kind of woman who always knows what's going on, so it's no surprise that she has already figured out that something is off with Anna.

Meanwhile, the kids are all excited about a new arcade game that has just come out. Rudy, Vanessa, and Theo have been playing the game non-stop and are doing their best to avoid doing any homework. However, when Clair comes home from work, she puts a stop to the gaming and makes them all buckle down and get their work done.

The tension between Clair and Cliff over his mother's secret comes to a head when Clair confronts Anna. Anna tries to brush off Clair's questions, but she finally admits that she has a huge secret that she's been keeping from everyone for years. It turns out that Anna has been hiding a significant amount of money in a secret account, and she hasn't told anyone about it. Clair is upset that Anna has kept this secret from them for so long and urges her to come clean to Cliff.

Despite Anna's initial resistance, she eventually admits to Cliff that she has been hiding money from him. Cliff is shocked and hurt that his own mother would keep something like this from him, but he decides to forgive her. He tells Anna that he loves her and that he doesn't want this secret to come between them.

The episode ends with the family gathered around the dinner table, enjoying a meal together. Clair reflects on the events of the day and tells Cliff that they have a strong family bond that will never be broken. The episode is a powerful reminder of the importance of honesty and communication in family relationships, and it reinforces the idea that love and forgiveness can overcome even the most difficult of secrets.