okay today i go out side and notice i the battery is dead on my dads 1970 chevy lwb 1/2 ton because my mom left the lights on

so i put it in nuetral and move it so i can pull my truck out of the garage to clean it , and when i move it i notice there was about a pint of tranny fluid on the ground! so i look at the tranny fluid its says''add" well i go under and wipet the tranny Xmember clean and wacth it after about 5 mins there is already 5 spots were tranny fluid is dripping again what do we do? what is wrong?