钢铁骷髅将他困在了吓人的钢铁骷髅潜水艇里！和水下钢铁侠一起潜入深水之中， 拯救你的复仇者同伴。控制水下飞机抵挡水下九头蛇的攻击，躲开潜水艇发射的射 钉。然后与铁骷髅对战，击败他救出水下美国队长！
Dive to rescue Scuba Captain America from Iron Skull!
Iron Skull has trapped him in his awesome Iron Skull Sub! Go deep underwater with Scuba Iron Man to save your fellow Avenger. Fend off attacks by the Hydra diver on his underwater jet and dodge the Sub’s stud shooters. Then face off against Iron Skull and defeat him to free Scuba Captain America!
- Includes 4 minifigures: Scuba Iron Man, Scuba Captain America, Iron Skull and a Hydra diver.
- The Iron Skull Sub features a red skull logo, opening cockpit, cage with translucent-red opening door and chain attachment to drop down and trap Scuba Captain America, 4 stud shooters and a storage compartment for Iron Skull’s gear.
- The Hydra diver’s underwater jet features 2 harpoons.
- Find a way into the Iron Skull Sub and help Scuba Captain America escape from evil Hydra.
- Accessory elements include Scuba Iron Man and Iron Skull’s thrusters for their hands and feet, Scuba Captain America and Hydra diver’s oxygen tank and flippers, plus Scuba Captain America’s shield.
- Also includes a comic book.
- Iron Skull Sub measures over 3” (9cm) high, 9” (23cm) long and 4” (12cm) wide.
- Hydra diver’s underwater jet measures over 1” (4cm) long, 1” (4cm) wide and under 1” (2cm) high.
钢铁骷髅地下攻击（Iron Skull Sub Attack）属于超级英雄系列积木套组，整个套组包含 335 个积木颗粒。乐高LEGO 76048 首发于2016年，之后被得高DECOOL、乐拼LEPIN、森宝SEMBO/盛源S牌SY等多个国产积木品牌所复刻。