This YouTube video of a Labrador dog and her puppy is short but very good.
The puppy is swimming in the water but can not get out. The mum jumps in after her and helps her to the side. But the puppy can not jump up to the side of the pool.
The mum gets out of the pool and goes around to her puppy and drags her out of the water onto the side of the pool.
A short video but is heart warming to watch