2000 Dodge Stratus 2.4 Liter Transmission Pan Leaking


I have a Dodge Stratus that my friend hit a median wit while driving. She drove it for about a day after that. The Transmission Fluid was slowly leaking out of the back of the pan as far as i can tell. What should I start out with? just Resealing the Pan and filling it back up with Fluid?? Or do i need to go ahead and change the torque converter?? i want to go the cheapest route possible...