Every year many of the young salmon swim upstream to where they were spawned to lay eggs and raise a new generation of young fish that will swim down to the ocean. There are a number of dangers that they have to face rough water hungry bears eagles fishermen and in this case the change in the stream due to the fire that covered the side of the mountain where the stream flows. Can Sally make it past all the obstacles to lay her eggs in the same headwaters of the creek where she grew up?