Jessie and her companions from "Downriver" have returned to the Grand Canyon, brimming with anticipation about running the big rapids. For Jessie, it's a dream come true; as for Troy, this trip is his chance to convince the others he's changed. Jessie wants to believe him, but she discovers an alarming secret about his true motives. In the end, the river itself will be the ultimate test. With the flooded river at record levels, it's going to take all of them pulling together if they're going to survive.
Jessie, Troy, and the rest of the crew from Downriver have returned to the Grand Canyon for adventure down the Colorado River. In the year since they last were together, each has changed; each feels more mature. But how will they interact now that they are facing new challenges--challenges greater than anything they've had to deal with at home?

For Troy, it is a chance to prove he can be a team player, someone worthy of friendship and love. For Jessie, the river is the ultimate test. Does she have what it takes to row down the mighty Colorado? The only way to find out is to get into the raft and set off to face the thundering rapids and the powerful emotions that the river unleashes.