what is the name of the 80s movies where kids rescue dogs from a pound?

Question

the kids sneak into the pound like spies and release the dogs. one of the characters has a pesky younger sister.

the kids sneak into the pound like spies and are very high tech. no idea who the actors or characters are.

Answer 1

can you tell a little more of the plot. Do you remember who played in it? is it Dirkham Detective Agency 1983 or go here they have every dog movie ever made almost!
http://members.tripod.com/westminsterkc/video.htm

Answer 2

I loved this movie, and it was real hard to find for a long time.

Little Spies" (1986, tv)
http://www.imdb.com/title/tt0091420/