Complex sentence: When Shredder is being transferred between prisons by corrections officer Casey Jones, his Foot Clan--operating under the direction of scientist Baxter Stockman--attack the convoy transporting him, but the Turtles, tipped off to the escape attempt by April O'Neil, fend them off.
Split into simpler sentences: When Shredder is being transferred between prisons by corrections officer Casey Jones, his Foot Clan--operating under the direction of scientist Baxter Stockman--attack the convoy transporting him. The Turtles, tipped off to the escape attempt by April O'Neil, fend them off.