"Kate" is a "hard worker" (check out the coveralls and the hard hat) who has insurance but still pays too much for medication for herself and her son. She's arrived at the pharmacy to pick up the medication prescribed for her kid, which costs $67 (of course.) Except that she already knows in advance that there's this thing called GoodRx and she's already downloaded it to her phone. This allows her to put this stupid triumphant look on her face after her kid runs off with his meds and convinces her to fold her arms and stand in the middle of the pharmacy as if she's just conquered the world.
Like "Linda" in a previous ad, there's clearly not a whole lot of Positive going on in Kate's life. She's on meds, and her son, who seems to enjoy just hanging around all by himself just outside the window (if you can figure out what he's doing out there, please feel free to drop a comment) just wants to get his medication and get on with his life but he's being delayed by mom and her Celebrate Every Victory weirdness. This is one kid who looks forward to Dad's weekend, I'll bet.