In series #21 of The Adventures of Jonathan Park... When Kendall’s old buddy, botanist Dr. Alex Redding, disappears into a mysterious cave, the team rushes to the African country of Eritrea to help find him. After surviving a harrowing sandstorm in a rickety helicopter, they soon discover that their search and rescue mission is far more complicated and dangerous than they could have imagined! The cave in question is no ordinary hole in the ground, but the potential discovery of a lifetime — of all lifetimes!