f2.js

$(function(){
    var Person = Backbone.Model.extend();
    var People = Backbone.Model.extend({
        'url': '/api/v1/basket/',
        model: Person
    });

    var Baskets = Backbone.Collection.extend({ 
        model: People,
        'url': '/api/v1/basket/'
    });
    var baskets = new Baskets;
    baskets.fetch({
        success: function(baskets){
            var basket = baskets.at(0);
            console.dir(basket.get('people'));
        }
    });
})