Chris accidentally discovers an old book at the attic which belonged to his grandfather, which he brought with him from his journeys.
The book makes him and his dog time travel through imagination to historical occurrences of different nations which lived in the Americas before their discovery by Columbus in 1492.
[1] No DVD or VHS releases has ever been made of the series, although the complete show is available (in Spanish) in BRB's YouTube channel.
A voice over would follow by Chris' grandfather describing the flora and fauna of the place the pre-Columbian culture inhabited, while on screen the mentioned beings were shown.
Chris would arrive into a village of the culture, where after having to save someone's life, giving the excuse to have the characters present each other, some odd comment would be made about his dog.