The film follows several children who are attempting to get from Mexico and Central America to the United States, on top of a freight train that crosses Mexico known as "La Bestia" (The Beast).

Cammisa received a Fulbright Scholar Grant to make the documentary in 2006.

Each year, thousands of Latin American migrants travel hundreds of miles to the United States, with many making their way on the tops of freight trains.

As the United States continues to debate immigration reform, the documentary Which Way Home looks the issue through the eyes of children who face the harrowing journey with enormous courage and resourcefulness.

[1] An excerpt from the soundtrack (heard at 0:07:10 and again at 1:06:00) by James Lavino has been adopted by the Turner Classic Movies network to accompany the introduction trailer to feature film presentations in 2016.