This slice-of-life story depicts a 6-month period in the realistic lives of twin middle-school students - Teresa and Fernando - who live in Mexicali, Mexico, right on the border with the United States. During this period, the sister twin is beginning school on the U.S. side of the border - Calexico, while the brother has chosen to remain enrolled in school on the Mexicali side.
As the two begin to have separate lives, the tension between them results in the brother reaching toward a friendship with the "only available" person - a slightly-more mature boy with a lot of issues. Unfortunately, that kid's issues can't be untangled even though some of them offer a reasonable and valuable critique of the border cities' problems resulting from North-American domination, while other of his issues are just clearly dangerous and problematic - especially for the intended audience. Will young readers be likely to think of Alex's ideas as linked by causation, or see them for the smorgasbord they seem to be from my adult perspective?
That is; Do all teenage drug dealers live in bigger houses with their own bedrooms & televisions, see the U.S. policies and tourists as exploitative, criticize American cultural expressions - like music & movies - as inferior, smoke weed, lie, pressure friends to work for them, turn to violence when they are crossed? Or will this one kid seem unique & unusual?
Meanwhile, the siblings' differences and the differentiated ways they cope, and the different scenarios they encounter in their days - all of it *also* seems rushed-over and tossed together like salad rather than laid out in a way that would deepen understanding, empathy, or political analysis.
Although the climactic conflict is resolved in a way that may appear believable to Northerners (Teresa intervening, the kids working out their dispute in secret so neither gets in trouble) ...but I'm going to guess that Mexican parents living in a border city, crossing over multiple times every week, would've noticed the problems before they got to the crisis point. (Middle school students sneaking around and occasionally smelling like pot in any city is going to get their parents' attention, but in a border town...I didn't believe the parents would fail to notice this.)
There are interesting cultural details woven into the story, and the images show diverse populations and unique cultures in both places - the author/illustrator is clearly familiar with both, and also used photographic sources to make the art very realistically detailed and specific.
I think kids who like realistic graphic novels about middle school students will find the general story of interest, and the crisis about pot-dealing a little overwhelming. Since it is never revealed to the parents or teachers, there is no moment when the author gives young readers a "this is what you *really* should do, if this comes up" lesson, which in my mind would've been the developmentally appropriate tactic. As it is, kids will end this book believing that getting involved in a drug deal is a secret 12-year-old siblings should keep and handle amongst themselves.