I came home and went into my basement and seen there was flooding going on in my basement. It is where a basement drain is. The water is dirty and it's only in that area.. I have no issues with backups in sinks or toilets or anything, just that area.. the puddle directly over the drain is about 5 feet by 5 feet and about 4 inches deep. What could be causing this? I'm very clueless when it comes to plumbing so need some advice. Thanks in advance.

You have a blockage that needs to be "SNAKED". You can pay a guy, or do it yourself,

https://www.youtube.com/watch?v=181VRfyxZUc,

And

https://www.youtube.com/watch?v=AgVCMG6o7I0

You should check out all the videos as they are very instructional for the whole house.

And don't use any water until you have the drain cleared. It will only come out the floor drain.

Floor drains are frequently not connected to sanitary sewers so I would not worry about using sink water just yet. If you run water in a sink does the water on your floor appear to get bigger? Do you have a sump pump pit?