Complex sentence: They are of the plans Nuovo Azzuro has to break Giacomo Dante out of prison that have been discovered by Code-name "Pandora" and that Giacomo better hope he stays locked-up.
Split into simpler sentences: They are of the plans Nuovo Azzuro has to break Giacomo Dante out of prison that have been discovered by Code-name "Pandora". And that Giacomo better hope he stays locked-up.