On paper, “Heading Home: The Tale of Team Israel” does not sound like a world-historic saga of baseball. This documentary — directed by Seth Kramer, Daniel A. Miller and Jeremy Newberger — hangs out with members of Israel’s national team before and during the 2017 World Baseball Classic, Major League Baseball’s main international competition. Israel is looking to shed its underdog status. The problem? According to the movie, there may be only one genuine baseball field in Israel.

So “Heading Home” becomes the story of a group of Americans with Jewish ancestry who join the team. Because they are eligible for Israeli citizenship, it’s kosher for them to play. Whether it’s ethical for a team to stock its roster with ringers, including Sam Fuld, just off an injury with the Oakland Athletics, and Ty Kelly, then with the Mets, is a riddle “Heading Home” would rather not solve.