So, imagine you and your friend Tommy are playing with some toys. Suddenly, Tommy takes one of your toys without asking and starts playing with it. You get mad and want your toy back, but Tommy says it's his now.
That's kind of what happened in Foman v. Davis - but instead of toys, it was about money. Mr. Foman let Mr. Davis borrow some money, but when it was time for Mr. Davis to pay it back, he said he didn't have to because of some legal rules called "statutes of limitations."
But Mr. Foman didn't think that was fair - just like you didn't think it was fair when Tommy took your toy without asking. So he went to court to try to get his money back.
But the court had to decide if Mr. Davis really didn't have to pay Mr. Foman back because of those legal rules. It's kind of like if you asked your mom or dad to decide who gets to keep the toy.
In the end, the court decided that Mr. Davis did have to pay Mr. Foman back, even though those legal rules said he didn't have to. It's like your mom deciding that you get your toy back because it was yours to begin with.
So, in sum, Foman v. Davis was a court case where one person lent money to another person, but then the borrower didn't want to pay it back because he thought he didn't have to. But the court said he did have to pay it back, and the lender (Mr. Foman) got his money back in the end.